If bowling ball and golf ball drop from the same height, which will hit the ground first?
Answers
The bowling ball will likely hit the ground first.
If a bowling ball and a golf ball are dropped from the same height in a vacuum or an environment where air resistance is negligible, they will hit the ground at the same time. This is because in the absence of air resistance, the only force acting on the objects is gravity, and both objects experience the same acceleration due to gravity.
According to the theory of free fall, all objects near the surface of the Earth, regardless of their masses, accelerate at the same rate of approximately 9.8 meters per second squared (m/s²). This means that both the bowling ball and the golf ball would experience the same acceleration, causing them to fall with the same speed and hit the ground simultaneously.
However, in real-world scenarios where air resistance is present, the objects will experience different amounts of air resistance due to their different shapes and sizes. The bowling ball, being larger and heavier, will experience less air resistance relative to its weight compared to the golf ball. As a result, the bowling ball will tend to overcome air resistance more effectively and hit the ground slightly earlier than the golf ball.
So, in summary, if air resistance is negligible or not a factor, both balls will hit the ground simultaneously. If air resistance is significant, the bowling ball will likely hit the ground first.
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Related Questions
using the ozone data, fit a model with o3 as the response and temp, humidity, and ibh as predictors. use the box–cox method to determine the best transformation on the response.
Answers
To fit a model with ozone (O3) as the response variable and temperature (Temp), humidity, and IBH (Inversion Base Height) as predictors, and determine the best transformation on the response using the Box-Cox method, you can follow these steps:
Load the ozone dataset:
Assuming you have the ozone dataset available, load it into your R environment.Explore the data:
Check the summary statistics and visualize the relationships between the variables to gain insights into their distributions and associations.Perform the Box-Cox transformation:
Use the boxcox() function from the MASS library to determine the best transformation for the response variable. This function estimates the lambda parameter that maximizes the log-likelihood and suggests the most appropriate transformation.Transform the response variable:
Apply the Box-Cox transformation using the determined lambda value. Here's an example assuming the lambda value is stored in the lambda variable.Fit the regression model:
Fit a regression model using the transformed response variable and the predictors.Evaluate the model:
Assess the model's goodness-of-fit, check the residuals, and validate the assumptions to ensure the model is appropriate for your data.It's important to note that the Box-Cox transformation should be applied cautiously and with consideration for the underlying assumptions of the data. Additionally, model selection and evaluation involve various considerations beyond just the transformation of the response variable.Learn More About Box-Cox method at https://brainly.com/question/31665724
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momentum? b. A student claim that he can produce linear momentum in carrom men with the help of a striker. Is his claim true? Explain. [2] inciple of conservation of linear momentum. momentum ? b . A student claim that he can produce linear momentum in carrom men with the help of a striker . Is his claim true ? Explain . [ 2 ] inciple of conservation of linear momentum .
Answers
The claim of the student is True, he can produce linear momentum in carrom with the help of b.
To explain the principle of linear momentum we can say that:-
According to the principle of conservation of momentum, if two things collide, the total momentum before and after the impact will be the same if no external force occurs on the colliding items.
Linear momentum conservation When the net external force is zero, the momentum of the system remains constant, as expressed mathematically by the expression.
Initial momentum = final momentum
Formula of Linear momentum is:-
Linear momentum = mass × linear velocity
P = M × V
The law of momentum conservation is based on Newton's third rule of motion, which states every force has a corresponding and opposing reciprocating force.
So we understand that Principle of Linear momentum. The initial momentum is equal to final momentum after collision hence, the carrom striker follows the concept of linear momentum.
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Of there was no matter to vibrate, How will this affect a sound?
1. This sound would be louder.
2. The sound would have higher pitch.
3. There would be no sound.
4. The sound would have a lower pitch
Answers
Answer:
3. There would be no sound.
Explanation:
Sound is produced by vibrations that travel through a medium, most commonly through air.
If there is no matter to vibrate (such as in the vacuum of space) then there's no way for a sound wave to be produced.
Thus the answer is option 3. There would be no sound.
Complete the following Water enters a 200L tank at a rate of 32g/s and is withdrawn at a rate of 10g/s. The tank is initially half full. Write a mass balance for this process and solve the balance equation to determine how long it will take the tank to drain completely in minutes. The density of water conversion is 1000g/1L an Engineering Connect
Answers
It will take the time to drain completely in minutes when The density of water conversion is 1000g/1L is 75.76 minutes.
To write a mass balance for this process, we need to consider the inflow of water into the tank and the outflow of water from the tank. The mass balance equation for this process can be written as follows:
dM/dt = Q_in - Q_out
where dM/dt is the rate of change of the mass of water in the tank over time, Q_in is the inflow of water into the tank, and Q_out is the outflow of water from the tank.
In this case, the inflow of water into the tank is 32 g/s, and the outflow of water from the tank is 10 g/s. The initial mass of water in the tank is 200L * 1000 g/L = 200,000 g, and the tank is half full, so the initial mass of water in the tank is 200,000 g/2 = 100,000 g.
Substituting these values into the mass balance equation, we get:
dM/dt = 32 g/s - 10 g/s = 22 g/s
To determine how long it will take the tank to drain completely, we can solve the mass balance equation for t. The mass of water in the tank at any time t is given by:
M(t) = M(0) + dM/dt * t
where M(0) is the initial mass of water in the tank and t is the time in seconds.
Substituting the values for M(0) and dM/dt, we get:
M(t) = 100,000 g + 22 g/s * t
To drain the tank completely, the mass of water in the tank must be zero, so we can set M(t) = 0 and solve for t:
0 = 100,000 g + 22 g/s * t
t = -100,000 g / 22 g/s
t = -4545.45 s
Since there are 60 seconds in a minute, the time it will take the tank to drain completely in minutes is t/60 = -4545.45 s / 60 s/min = 75.76 minutes.
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PLEASE HELP!
A truck pushes a 2030 kg-car with a force 700 N for 5.0 s. The cars starts from rest.
How far will it go?
Answers
Answer:
x = 4.32 [m]
Explanation:
We must divide this problem into three parts, in the first part we must use Newton's second law which tells us that the force is equal to the product of mass by acceleration.
∑F = m*a
where:
F = force = 700 [N]
m = mass = 2030 [kg]
a = acceleration [m/s²]
Now replacing:
\(F=m*a\\700=2030*a\\a = 0.344[m/s^{2}]\)
Then we can determine the final speed using the principle of conservation of momentum and amount of movement.
\((m_{1}*v_{1})+Imp_{1-2}=(m_{1}*v_{2})\)
where:
m₁ = mass of the car = 2030 [kg]
v₁ = velocity at the initial moment = 0 (the car starts from rest)
Imp₁₋₂ = The impulse or momentum (force by the time)
v₂ = final velocity after the impulse [m/s]
\((2030*0) + (700*5)=(2030*v_{2})\\3500 = 2030*v_{2}\\v_{2}=1.72[m/s]\)
Now using the following equation of kinematics, we can determine the distance traveled.
\(v_{2}^{2} =v_{1}^{2}+2*a*x\)
where:
v₂ = final velocity = 1.72 [m/s]
v₁ = initial velocity = 0
a = acceleration = 0.344 [m/s²]
x = distance [m]
\(1.72^{2}=0^{2} +(2*0.344*x) \\2.97 = 0.688*x\\x = 4.32 [m]\)
A circus truck full of monkeys has a mass of 3175 kg. The kinetic energy of the circus truck is 128,587.5 J. Calculate the speed of the truck.
Answers
Explanation:
please mark me as brainlest
A circus truck full of monkeys has a mass of 3175 kg. The kinetic energy of the circus truck is 128,587.5 J. The speed of the truck is 9 m/sec
What is speed?The speed of an object is the magnitude of the change of its position over time or the magnitude of the change of its position per unit of time; it is thus a scalar quantity.
Kinetic Energy =(.5) Mass. (Velocity)²
K.E = 0.5 m.v²
81 = v²
v = 9 m/sec
A circus truck full of monkeys has a mass of 3175 kg. The kinetic energy of the circus truck is 128,587.5 J. The speed of the truck is 9 m/sec
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The type of control chart that is beat to montor this process is a) Establish the control limits to include 09.73% of the random variation in defectives. UCL
p
=0.290
∘
(enter your response as a number between 0 and 1, rounded to three decimal places). LCL
p
=0 (enter your response as a number between 0 and 1, rounded to three decimal places). b) Has the process been in control? Based on the developed control limits, the number of defectives has been c) If the sample size were 20 instead, how would your limits and conclusions change? UCL
p
= (enter your response as a number behween 0 and 1, rounded to three decimal places).
Answers
The upper control limit (UCLp) for the control chart is 0.290, rounded to three decimal places. The lower control limit (LCLp) is 0, rounded to three decimal places.
Based on the developed control limits, we cannot determine whether the process has been in control or not without additional information.
Control charts are used to monitor and control processes by analyzing data and identifying variations. In this case, the control chart is being used to monitor the number of defectives in a process. The question provides the control limits for the chart, which are the upper control limit (UCLp) and the lower control limit (LCLp).
The UCLp is the highest acceptable value for the proportion of defectives in the process, while the LCLp is the lowest acceptable value. In this case, the UCLp is given as 0.290, which means that if the proportion of defectives exceeds this value, it would be considered out of control. The LCLp is given as 0, indicating that there is no lower limit for the proportion of defectives.
However, the question does not provide any data or information about the actual proportion of defectives observed in the process. Without this data, we cannot determine whether the process has been in control or not. To make a determination, we would need to compare the observed proportion of defectives to the control limits provided.
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Calcule how long it takes a sound wave to travel trough 1.0km of water at 0C
Answers
Answer:
Explanation:
25.0 m/s
Speed in the water is much faster than in air, the distance that sound waves travel is primarily dependent upon ocean temperature and pressure. While pressure continues to increase as ocean depth increases, the temperature of the ocean only decreases up to a certain point, after which it remains relatively stable.
Which terrestrial planet exhibits retrograde rotation?.
Answers
Answer:
Planets that are farther from the sun than the earth (all but Mercury and Venus) will exhibit retrograde motion.
If the position of the planet is observed relative to the background stars, the planet will appear to move backward relative to the stars when the earth is moving in an Eastward direction faster than the planet, and the planet appears to move backwards relative to the stars
(The planet will be on the side of the earth that is opposite that of the sun)
True or False. Average velocity can be expressed as (Δs/Δt) where s(t) is the position function.
Answers
The given statement "Average velocity can be expressed as (Δs/Δt) where s(t) is the position function." is True. Average velocity is defined as the change in position over a given time interval.
This can be expressed mathematically as (Δs/Δt), where Δs is the change in position and Δt is the change in time. The position function, s(t), gives the position of an object at any given time t. By calculating the difference in position over a specific time interval, we can determine the average velocity of the object during that interval. This calculation is a fundamental concept in calculus and physics, as it allows us to understand how objects move and change over time. Therefore, it is true that average velocity can be expressed as (Δs/Δt) where s(t) is the position function.
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least three different types of energy
Answers
Answer:
Kinetic, Potential, and Chemical energy
Explanation:
If you want to know the six basic ones they are, chemical, electrical, radiant, mechanical, thermal and nuclear energy. Hope this helps!
Answer:
If talking about forms of energy, the answer would be:
Kinetic, potential, and chemical energy
If asking for types, the answer could be:
Nuclear, Electrical, and Thermal
Water flows smoothly through a pipe with various circular cross-sections of diameters 2D, 6D,and D`, respectively.
What is the ratio of the speed in section 3 to the speed in section 1?
In which section is the pressure largest? Choose the best answer.
Answers
Therefore, the largest pressure is in section 1. Therefore, the answer is Section 1.
Water flows smoothly through a pipe with various circular cross-sections of diameters 2D, 6D, and D', respectively. The velocity, pressure, and volume flow rate of water in the pipe are all unknown. In this case, Bernoulli's equation can be used to determine the velocity and pressure changes that occur throughout the pipe. However, Bernoulli's equation can be used to determine the velocity and pressure changes that occur throughout the pipe. The following is the formula for Bernoulli's equation:
p1 + (1/2)ρv1² + ρgh1 = p2 + (1/2)ρv2² + ρgh2
Where:
p1 is the pressure at section 1,
ρ is the density of water,
v1 is the velocity at section 1,
g is the acceleration due to gravity,
h1 is the height at section 1,
p2 is the pressure at section 2,
v2 is the velocity at section 2, and
h2 is the height at section 2.
Let's take the velocity ratio first. Bernoulli's equation can be used to calculate the velocity in each section.
p1 + (1/2)ρv1² + ρgh1 = p2 + (1/2)ρv2² + ρgh2
p2 = p1, h1 = h2, and ρ are all constants, and thus can be canceled. Using Bernoulli's equation, we get:
(1/2)ρv1² = (1/2)ρv2² + (1/2)ρv3²
v3/v1 = (v1² - v2²)½ / (v1² - v3²)½ = (D'² - D²)½ / (D'² - 4D²)½
So, the ratio of the speed in section 3 to the speed in section 1 is (D'² - D²)½ / (D'² - 4D²)½.
Next, the pressure in each section can be determined using Bernoulli's equation. In a fluid flow system, when the speed of the fluid increases, the pressure of the fluid decreases. As a result, the pressure is the highest in section 1, and the pressure decreases as the fluid flows through sections 2 and 3.
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A firecracker is launched into the with an initial velocity of 53.5 m/s. What will be the firecracker’s maximum height, in meters?
Equations used in picture below:
Answers
Answer:
146 m.
Explanation:
From the question given above, the following data were obtained:
Initial velocity (vᵢ) = 53.5 m/s
Final velocity (vբ) = 0 (at maximum height)
Acceleration due to gravity (g) = –9.8 m/s² (since the firecracker is going again gravity)
Maximum height (h) =?
Thus, we can obtain the maximum height reached by the firecracker by using the following formula:
vբ² = vᵢ² + 2gh
0² = 53.5² + (2 × –9.8 × h)
0 = 2862.25 + (–19.6h)
0 = 2862.25 – 19.6h
Collect like terms
0 – 2862.25 = – 19.6h
– 2862.25 = – 19.6h
Divide both side by – 19.6
h = – 2862.25 / –19.6
h = 146 m
Therefore, the maximum height reached by the firecracker is 146 m
A scientific theory is_____.
A. A well-tested explanation for a broad set of observations
B. A well-tested explanation for a widely accepted hypothesis
C. A proven explanation for the results of multiple experiments
D. A hypothesis that has stood the test of time
Answers
Answer:
B. A well-tested explanation for a widely accepted hypothesis
Explanation:
This is true about a scientific theory going by the fact of it being a well tested explanation. For example, in one of the Newtons law of motion which he stated to be "To every action, there is equal and opposite reaction", the hypothesis has been known till he was able to offer a well tested explanations with calculations showing that, it was actually true.
Why is power companies use AC rather than DC?
A. AC dissipates lower power than DC in a current carrying wire
B. It is more convenient to step up/down voltage for AC than DC
C. Power dissipation in AC is lower since frequency is high
D. AC has lower risk of shock than DC
Answers
Option B is correct. It is more convenient to step up/down voltage for AC than DC.
How is AC superior to DC?The main reason why power companies use AC (alternating current) rather than DC (direct current) is that it is more convenient to step up or down the voltage of AC power using a transformer. Transformers work on the principle of electromagnetic induction and allow for efficient voltage conversion at high power levels, which is necessary for long-distance power transmission. In contrast, DC voltage cannot be efficiently converted with a transformer, and high-power DC transmission requires expensive and complex equipment. Additionally, AC power can be easily generated using rotating machines like turbines and generators, while DC generators are less efficient and more expensive to operate. Therefore, the convenience and efficiency of voltage conversion and power generation make AC a more practical choice for power transmission and distribution.
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Does paint and cardboard have joints in it
Answers
In your conclusion: Comment of the following but not limited to
Comment on the success of this experiment
Is your result consistent with Archimedes' principle?
Answers
Archimedes' principle is stated as "an object wholly or partially immersed in a fluid is buoyed up by a force equal to the weight of the fluid displaced by the object."
It explains that the buoyant force acting on an object is equal to the weight of the fluid displaced by the object.In the experiment the object will float, and if the buoyant force is less than the force of gravity, the object will sink. The aim of this experiment was to calculate the density of an object using Archimedes' principle.
The object was suspended from a string, and its weight was measured. Then it was immersed in water, and the weight was measured again. The difference in weight of the object in air and water is equal to the weight of the displaced water. Therefore, the volume of the displaced water could be calculated, and hence the density of the object.
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Why are positive charges free to move around in gases and liquids but not in solids?
Answers
If anyone knows please anwser
Answers
Answer:
C.
Explanation:
Answer:
c. Radio and T.V. signals
A shop owner wanted to sell a gold-coloured cube to Mr Lee for $2000. The shop
owner claimed that it was made of pure gold. Mr Lee wanted to investigate whether
the shop owner's claim was true. He measured the length and mass of the cube,
and found that it was 2 cm and 100 g respectively. He also found out that the density
of pure gold is 19.3 g/cm?State whether the shop owner's claim is true. Explain your answer.Is density a useful physical property for identifying an unknown substance? Explain why.
Answers
Answer:
shop owner's claim is NOT true
12.5g/cm^3 does not equal density of real gold is 19.3 g/cm^3
Explanation:
density of pure gold is 19.3 g/cm^3
length and mass of the cube 2 cm and 100 g
match the units
2 cm to cm^3 = 2^3 = 8 cm^3
8 cm^3
real gold : 19.3 g/cm^3 units are g/cm^3
gold-coloured cube to be sold : 100g/8 cm^3 = 100 divided by 8 =
12.5g/cm^3 does not equal density of real gold is 19.3 g/cm^3
shop owner's claim is NOT true
socraticorg
In an experiment the mass of a calorimeter is 36.35 g . Express in micrometer ,millimetre and kg.
Answers
Answer:
1. 36.35 g = 36.35E15 micrometer.
II. 36.35 g = 363.5 millimetre.
III. 36.35 g = 0.03635 kilogram.
Explanation:
Given the following data;
Mass of calorimeter = 36.35 gramsTo convert the mass in grams (g) to;
I. Micrometer
Conversion:
1 g = 1 exp 15 um
36.35 g = X um
Cross-multiplying, we have;
X = 36.35 * 1 exp 15 = 36.35 exp 15 um
36.35 g = 36.35E15 micrometer
II. Millimetre
Conversion:
1 g = 1 milliliter
36.35 g = X milliliter
Cross-multiplying, we have;
X = 36.35 * 1 = 36.35 milliliter
Next, we would convert milliliter to millimetre;
1 milliliter = 10 millimetre
36.35 milliliter = X millimetre
Cross-multiplying, we have;
X = 36.35 * 10 = 363.5 millimetre
36.35 g = 363.5 millimetre
III. Kilogram
Conversion:
1000 grams = 1 kilogram
36.35 g = X kilogram
Cross-multiplying, we have;
X * 1000 = 36.35 * 1
Dividing both sides by 1000, we have;
X = 36.35/1000 = 0.03635 kilogram
36.35 g = 0.03635 kilogram
Note:
g is the symbol for grams.Exp (E) means exponential = 10um is the symbol for micrometer.A wave has a period of n seconds. What is the frequency of this wave?
Answers
Answer:
n Hz
Explanation:
I think I'm Sry if it is wrong.
An ice skater is going into a spin. To simplify the system, the skater’s body (legs, torso, head) has a moment of inertia of 1.719kgm^2. Each hand-arm can be modeled as a point of mass of 5.0kg. At the beginning of the spin, the masses are rotating at 0.50m/s with their arms extended so that the center of mass of the hand-arm is 0.60m from the axis of rotation. For the finale, the skater pulls their arm inward so that the hand-arm is 0.20m from the axis of rotation. What is the angular velocity of the skater during the finale?
Answers
The angular velocity of the skater during the finale is 2.18 rad/s.
The conservation of angular momentum is a principle in physics that states that the total angular momentum of a system remains constant if no external torques act on the system. Mathematically, this can be expressed as L1 = L2, where L1 is the initial angular momentum of a system, L2 is the final angular momentum of the system, and the total torque acting on the system is zero. This principle is analogous to the conservation of linear momentum, which states that the total linear momentum of a system remains constant if no external forces act on the system. The conservation of angular momentum is an important principle in many areas of physics, including mechanics, electromagnetism, and quantum mechanics.
We can use the conservation of angular momentum to solve this problem. The initial angular momentum of the skater and the hand-arms is given by:
L1 = I1 * w1
where I1 is the moment of inertia of the skater's body, and w1 is the initial angular velocity. Since the hand-arms are extended, their moment of inertia can be neglected.
When the skater pulls their arms inward, the moment of inertia of the system decreases. The final moment of inertia is given by:
I2 = I1 + 2md^2
where m is the mass of each hand-arm, d is the distance of the hand-arm from the axis of rotation, and we multiply by 2 since there are two hand-arms.
The final angular velocity w2 can be found by equating the initial and final angular momentum:
L1 = I1 * w1 = I2 * w2
Substituting the expressions for I1, I2, and simplifying, we get:
w2 = w1 * I1 / (I1 + 2m(d2^2 - d1^2))
where d1 is the initial distance of the hand-arm from the axis of rotation (0.60 m), and d2 is the final distance of the hand-arm from the axis of rotation (0.20 m).
Substituting the given values, we get:
w2 = 0.50 m/s * 1.719 kgm^2 / (1.719 kgm^2 + 2 * 5.0 kg * (0.20 m^2 - 0.60 m^2))
w2 = 2.18 rad/s
Therefore, The skater's angular velocity during the grand finale is 2.18 rad/s.
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A rounders ball is thrown with a velocity of 30 ms
−1
at a angle of 45
∘
to the horizontal Calculate a. the time it takes to reach its maximum height; [Ans: 2.16 s ] b. the total time taken to retum to its original level; [Ans: 4.32 s ] c. the maximum height reached; [Ans: 22.9 m ] d, the horizontal distance travelled. [Ans: 91.6 m ]
Answers
a. The time taken to reach maximum height is 2.16 s.
b. The total time taken to return to its original level is 4.32 s.
c. The maximum height reached is 22.9 m.
d. The horizontal distance travelled is 91.6 m.
Given information:
Velocity of ball = 30 ms⁻¹
Angle = 45° = π/4 rad
Gravity = 9.8 ms⁻²
To find:
a. The time taken to reach maximum height
b. The total time taken to return to its original level
c. The maximum height reached
d. The horizontal distance travelled.
a) The time taken to reach maximum height:
The time taken to reach maximum height can be calculated by using the formula as follows:
Time taken, t = (u sin θ) / g
Where,
u = Velocity of ball = 30 ms⁻¹
θ = Angle = 45° = π/4 rad
g = Acceleration due to gravity = 9.8 ms⁻²
Substitute the given values in the above formula:
t = (30 sin (π/4)) / 9.8
t = 2.16 s
b) The total time taken to return to its original level:
The time taken to reach the maximum height is equal to the time taken to return to its original level. Hence,
Total time taken = 2 x time taken to reach maximum height
Total time taken = 2 x 2.16
Total time taken = 4.32 s
c) The maximum height reached:
The maximum height reached can be calculated by using the formula as follows:
H = (u² sin² θ) / 2g
Where,
u = Velocity of ball = 30 ms⁻¹
θ = Angle = 45° = π/4 rad
g = Acceleration due to gravity = 9.8 ms⁻²
Substitute the given values in the above formula:
H = (30² sin² (π/4)) / (2 x 9.8)
H = 22.9 m
d) The horizontal distance travelled:
The horizontal distance travelled can be calculated by using the formula as follows:
D = u cos θ x t
Where,
u = Velocity of ball = 30 ms⁻¹
θ = Angle = 45° = π/4 rad
t = Total time taken = 4.32 s
Substitute the given values in the above formula:
D = 30 cos (π/4) x 4.32
D = 91.6 m
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Describe the difference between distance, position, and displacement
Answers
Answer:
Explanation:
Position is the location of the object (whether it's a person, a ball, or a particle) at a given moment in time.
Displacement is the difference in the object's position from one time to another.
Distance is the total amount the object has traveled in a certain period of time.
I hope this helps!
4. Which of the three approaches to sociological investigation best fit the study: scientific
sociology, interpretive sociology, or critical sociology? Why? (4 points)
Answers
Scientific sociology is one of the three methods of sociological investigation that fits the topic the best.
The definition of scientific sociologyIt is possible to define sociology as the scientific study of society, which includes a complete analysis of both internal and external elements that can have an impact on social structures and interaction patterns.
It should be noted that while the sociology field is very broad and full of opportunities that are required to complete the study that is being discussed in the work, this study focuses on social interaction and culture, which help to determine the things that can be used to learn more about the society.
In conclusion, of the three methods of sociological inquiry, scientific sociology is the most effective for the study of society.
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ship sends sonar to foal of fish. echo is heard 0.2 seconds later, and shoal is 120cm underwater. what is the speed of sound underwater?
Answers
The speed of sound underwater in this situation is 1200 cm/s.
To determine the speed of sound underwater based on the given information, we'll need to analyze the situation involving the ship sending a sonar signal to a shoal of fish, the echo being heard 0.2 seconds later, and the shoal being 120 cm underwater.
First, we need to understand that the sonar signal travels from the ship to the shoal of fish and then back to the ship, meaning it covers twice the distance between the ship and the fish. Since the shoal is 120 cm underwater, the total distance traveled by the sonar signal is 2 * 120 cm = 240 cm.
Next, we need to consider the time it takes for the sonar signal to travel this distance. We're given that the echo is heard 0.2 seconds later, which is the total time taken for the signal to travel to the shoal and back to the ship.
Now, to find the speed of sound underwater, we can use the formula:
Speed = Distance / Time.
In this case, the distance is 240 cm, and the time taken is 0.2 seconds.
Plugging the values into the formula, we get:
Speed = 240 cm / 0.2 seconds = 1200 cm/s.
So, the speed of sound underwater in this situation is 1200 cm/s.
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A car is sitting still what could cause the car to move
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How many grams of potassium may be formed by the passage of 5.92 amps for 1.94 hours through an electrolytic cell that contains a molten potassium salt.
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mass of the potassium formed by the passage of 5.92 amps for 1.94 hours through an electrolytic cell that contains a molten potassium salt is 16.41g
Total amount of current in amps = 5.92 Columbus/ sec(I)
total time period = 1.94 h = 1.94 X 3600 sec = 6984 sec(t)
initially electric charge Q is calculated Q =I X t =41,345.28 Columbus
now molar mass of K is 39.09g/mol and faradays constant = 96485 so by the formula , n=Q/F = 41,345.28/96485 =0.4285mol now, m = nM where n is number of mol and M is molar mass of K so 0.42 X 39.09=16.41g
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Is a ball a wheel and axle if so how do you calculate the Mechanical Advantage of the ball? If not what kind of simple machine is a ball?