An electric current of 0.05 A passes through a circuit that has a resistance of
15 2. According to Ohm's law, what is the voltage of the circuit?

A. 15.1 V
B. 300 V
C. 0.003 V
D. 0.75 V

Answer: Decreases in mass cause decreases in kinetic energy due to the aforementioned positive relationship between the two. Therefore when mass is decreased, an increase in kinetic energy is possible if velocity increases.

Answer:: Decreases in mass cause decreases in kinetic energy due to the aforementioned positive relationship between the two.

Answer:

yeah

Explanation:

the answer is right.

The average emf induced in the coil is 0. 533 V. The average emf induced in the coil can be calculated using Faraday's law of electromagnetic induction. The formula for the average emf induced in a coil is given by:

E = N * (ΔΦ / Δt)

where E is the average emf, N is the number of turns in the coil, ΔΦ is the change in magnetic flux, and Δt is the time interval.

In this case, the number of turns is 80, and the time interval is 0.0600 s. The change in magnetic flux can be calculated by finding the initial and final flux values.

The initial flux is given by Φ1 = B * A * cos(θ1), where B is the magnetic field, A is the area of the coil, and θ1 is the angle between the coil and the magnetic field.

The final flux is given by Φ2 = B * A * cos(θ2), where θ2 is 90 degrees since the coil is perpendicular to the field.

Substituting the values into the formula, we have:

\(E = 80 * (Φ2 - Φ1) / Δt\)

Calculating the values, we find:

\(Φ1 = (1.10 T) * (0.25 m) * (0.40 m) * cos(37.0°) = 0.536 WbΦ2 = (1.10 T) * (0.25 m) * (0.40 m) * cos(90°) = 0.110 WbΔΦ = Φ2 - Φ1 = 0.110 Wb - 0.536 Wb = -0.426 Wb\)

Substituting the values into the formula, we get:

E = 80 * (-0.426 Wb) / 0.0600 s = -0.568 V

Taking the absolute value, the average emf induced in the coil is 0.568 V or approximately 0.533 V.

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Answer:

384N

Explanation:

Given parameters:

Mass  = 3kg

radius  = 0.5m

Speed  = 8m/s

Unknown:

Centripetal force  = ?

Solution:

The centripetal force is the inward force that keeps a body in motion along a circular path.

It is mathematically expressed as;

      F = \(\frac{mv^{2} }{r}\)  

m is the mass

v is the speed

r is the radius

 Now insert the parameters and solve;

     F  = \(\frac{3 x 8^{2} }{0.5}\)   = 384N

Answer:

B

Explanation:

They are all one-dimensional

The numerical value of the period is 0.45 s.

The period of a spring-mass system is given by:

T = 2π√(m/k)

where T is the period, m is the mass of the object, and k is the spring constant.

The period is independent of amplitude, so we can use the same formula to find the new period with the larger amplitude:

T' = 2π√(m/k)

We can find the ratio of the new period to the old period:

T'/T = √(k/k') * √(m/m)

where k' is the new spring constant and m is the mass of the object.

Since the amplitude is quadrupled, the new spring constant is k' = 16k. Substituting this into the ratio equation:

T'/T = √(k/16k) * √(m/m) = 1/4

Therefore, the new period is one-fourth of the old period:

T' = (1/4)T = (1/4)(1.8 s) = 0.45 s

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A projectile is an object that is launched into the air and moves under the influence of gravity alone. The velocity of a projectile can be broken down into two components: the vertical component and the horizontal component. The vertical component of the velocity is the speed at which the object moves up or down, while the horizontal component is the speed at which it moves side to side.

The following are the methods to obtain the vertical and horizontal components of a projectile's velocity:

   If the initial velocity and the launch angle of the projectile are known, we can use trigonometry to calculate the vertical and horizontal components of velocity.

The horizontal component of the velocity is given by:

Vx = V * cosθ

where Vx is the horizontal velocity, V is the initial velocity of the projectile, and θ is the angle of launch.

The vertical component of the velocity is given by:

Vy = V * sinθ

where Vy is the vertical velocity.

   If the time of flight and the maximum height of the projectile are known, we can use kinematic equations to calculate the vertical and horizontal components of velocity.

The time of flight of a projectile is the time it takes to reach its maximum height and then fall back down to its original height. The maximum height reached by the projectile is the highest point in its trajectory.

The vertical component of the velocity can be calculated using the formula:

Vy = (2gh)^0.5

where Vy is the vertical velocity, g is the acceleration due to gravity, and h is the maximum height of the projectile.

The horizontal component of the velocity can be calculated using the formula:

Vx = d / t

where Vx is the horizontal velocity, d is the horizontal distance traveled by the projectile, and t is the time of flight.

In summary, the vertical and horizontal components of a projectile's velocity can be obtained using trigonometry if the initial velocity and launch angle are known or by using kinematic equations if the time of flight and maximum height are known.

Answer:

12.7 m

Explanation:

The following data were obtained from the question:

Initial velocity (u) = 56.7 Km/hr

Maximum height (h) =..?

First, we shall convert 56.7 Km/hr to m/s. This can be obtained as follow:

Initial velocity (m/s) = 56.7 x 1000/3600

Initial velocity (m/s) = 15.75 m/s

Next, we shall determine the time taken to get to the maximum height. This can be obtained as follow:

Initial velocity (u) = 15.75 m/s

Final velocity (v) = 0 m/s

Acceleration due to gravity (g) = 9.8 m/s²

Time (t) =?

v = u – gt (since the ball is going against gravity)

0 = 15.75 – 9.8 × t

Rearrange

9.8 × t = 15.75

Divide both side by 9.8

t = 15.75/9.8

t = 1.61 secs.

Finally, we shall determine the maximum height as follow

h = ½gt²

Acceleration due to gravity (g) = 9.8 m/s²

Time (t) = 1.61 secs.

Height (h) =..?

h = ½gt²

h = ½ × 9.8 × 1.61²

h = 4.9 x 1.61²

h = 12.7 m

Therefore, the maximum height reached by the ball is 12.7 m

Answer:

F=ma

5N=0.3a

a=5/0.3=16.66m/s²

PLEASE GIVE BRAINLIEST

Answer:

16.7

Explanation:

acceleration=force/mass

Answer:

Explanation:

The car will fall with acceleration due to gravity which is equal to 9.8 m /s²

For downward fall ,

initial velocity u = o

acceleration due to gravity = g = 9.8 m /s

final velocity v = ?

displacement h = 5.2 m

v² = u² + 2 gh

v² = 0 + 2 x 9.8 x 5.2

= 101.92

v = 10.1 m /s

At any crime scene, the two greatest challenges to the physical evidence are contamination and loss of continuity.

In evidence law, physical evidence (also called real evidence or material evidence) is any material object that plays some role in the matter that gave rise to the litigation, introduced as evidence in a judicial proceeding (such as a trial) to prove a fact in issue based on the object's physical characteristics.

The two types of evidence at crime scenes:

Biological evidence (e.g., blood, body fluids, hair and other tissues)

Latent print evidence (e.g., fingerprints, palm prints, footprints)

The biggest impediment to an investigation is the removal or loss of a piece of evidence from the scene of a crime.

Hence, at any crime scene, the two greatest challenges to the physical evidence are contamination and loss of continuity.

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Each tic mark indicates a time period of 9 seconds if the scale on the horizontal axis has a division of 9 seconds. As a result, the third tic point on the horizontal axis would denote the following period of time:

3 x 9 s = 27 s

Hence, 27 seconds are indicated by the third tic point on the horizontal axis.

It is true! The third tic point would represent three times nine seconds, or 27 seconds, as each tic mark on the horizontal axis denotes a time interval of nine seconds.Each tic mark indicates a time period of 9 seconds if the scale on the horizontal axis has a division of 9 seconds. As a result, the third tic point on the horizontal axis would denote the following period of time:Hence, 27 seconds are indicated by the third tic point on the horizontal axis.

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Answer:

no the moon does not rotate it only goes in circle just like the sun so I disagree with your friend

Answer:

From Dr. Stephen Warren, University of Washington (8/22/2007): The world record for low temperature was set at Vostok Station, Antarctica, on 21 July 1983. Cerveny et al. (2007) give this temperature as -89.4°C in their Table 2, quoting Krause and Flood (1997), who gave the same value.

(Hope this answered your question!)

The frequency of the alternating signal in the antennae wiring is 103.5 Hz.

Resonant frequency is the oscillation or vibration of a system at its natural frequency.

When the radio antennae picks up the radio wave, the natural frequency of the antennae must be the same as the frequency of the radio wave.

frequency of the antennae = frequency of the radio wave

Thus, the frequency of the alternating signal in the antennae wiring is 103.5 Hz.

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The kinetic energy of the electron accelerated by a 30 kV source is approximately 4.8 x 10^(-14) Joules.

Voltage (V) = 30 kV = 30,000 volts

Charge of an electron (e) = \(1.6 x 10^(-19) C\)

Calculating the potential energy -

P = e x  V

An object's motion gives it kinetic energy, which is a type of energy. It is described as the amount of effort required to accelerate a body of a specific mass from rest to its specified velocity. As Potential energy is equal to kinetic energy, therefore calculating the kinetic energy:

Potential Energy = Kinetic Energy = e x V

Substituting the value -

\(= (1.6 x 10^(-19) C) x (30,000 V)\)

\(= 4.8 x 10^(-14) J\)

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Galileo taught us that if you roll a ball along a level surface it will keep rolling if friction is absent.

Galileo Galilei, an Italian scientist, and astronomer, made significant contributions to our understanding of the laws of motion and the behavior of objects. One of his important observations and teachings relates to the motion of a ball rolling along a level surface.

Galileo taught us that when a ball rolls along a level surface, it will continue rolling indefinitely, provided there is no external force acting upon it. This principle is known as the law of inertia, which states that an object at rest will remain at rest, and an object in motion will continue in motion with a constant velocity unless acted upon by an external force.

In the case of a rolling ball, the ball experiences rolling resistance due to various factors such as friction and air resistance. However, if these forces are negligible or effectively canceled out, the ball will continue rolling without slowing down significantly.

Galileo's teachings challenged the prevailing notion at the time that objects needed a continuous force to remain in motion. He conducted experiments and made observations to demonstrate that objects in motion tend to remain in motion, even in the absence of an applied force.

This understanding of inertia and the motion of objects laid the foundation for Newton's laws of motion, which became fundamental principles in classical physics. Galileo's teachings on the motion of a rolling ball helped shape our understanding of the nature of motion and continue to be relevant in physics education and scientific research today.

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The point of maximal impulse (PMI) is normally located on the chest wall where the heartbeat is most prominently felt. It corresponds to the area on the chest where the left ventricle of the heart is in contact with the chest wall during systole (contraction phase of the heart). The PMI is typically found in the fifth intercostal space, just medial to the midclavicular line. In other words, it is often felt or observed slightly below the left nipple.

However, it's important to note that the location of the PMI can vary depending on factors such as the individual's body habitus, heart size, and certain cardiac conditions. In some cases, the PMI may be displaced due to factors such as enlargement of the heart or underlying heart conditions. Therefore, it's always best to consult a healthcare professional for accurate assessment and interpretation of the PMI.

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Answer:

The answer would be 0kg.

Your welcome.

Answer:

Forces, Gravity, Friction, Direction, Acceleration.

The answers for the fill-in-the-blanks would be  Force, gravity friction

direction and acceleration respectively.

It can be defined as the force by which a body attracts another body towards its center as the result of the gravitational pull of one body and another,

There are a few ways that moving objects are impacted. Pushes and pulls, or force, have an impact on how an object moves.

The force of gravity drags items toward the Earth.

Friction is a force that causes objects to move more slowly or even come to a stop.

It also applies to an item that is reversing course or slowing down. Since acceleration is a change in velocity, it can also be a change in speed or direction.

Thus, Force, gravity friction direction, and acceleration are the answers respectively.

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Upright and magnified image.

When you hold a magnifying glass very close to your face and look at your friend who is standing about 10 feet away, you will see an upright and magnified image of your friend. The magnifying glass acts as a converging lens, which enlarges and makes the image appear closer than the actual object.

A converging lens is a type of lens that causes light rays to converge or come together at a point, also known as the focal point, on the opposite side of the lens from the object. Converging lenses are also called convex lenses because they are thicker in the middle and thinner at the edges.

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Answer:

1.

A class __ lever never has a mechanical advantage.

A class __ lever always has a mechanical advantage.

A class __ lever could go either way.

Answer: 3; 2; 1

2.

A lever is used to lift an object with a weight of 60 Newtons. The effort force is 15 meters from the fulcrum, while the load force is 5 meters from the fulcrum. What is the mechanical advantage?

Answer: 3

3.

With which class of levers is it possible to increase the force that must be applied?

Answer: Class 1 and 3

4.

600 Joules of work is used to lift a box from the ground to a height of six meters. How much work would have been done if a lever would have been used with an effort arm of 12 meters and a load arm of 6 meters?

Answer: 600 J

5.

A lever with an effort arm of 10 meters and a load arm of 2 meters is used to lift an object weighing 220 Newtons to a height of 4 meters. If 400 Joules of work is done, how much force must have been applied?

Answer: 100 N

Explanation: took the test

Answer:

(Question)

A class __ lever never has a mechanical advantage.

A class __ lever always has a mechanical advantage.

A class __ lever could go either way.

(Answer)

3;2;1

(Question)

A lever is used to lift an object with a weight of 60 Newtons. The effort force is 15 meters from the fulcrum, while the load force is 5 meters from the fulcrum. What is the mechanical advantage?

(Answer)

3

(Question)

With which class of levers is it possible to increase the force that must be applied?

(Answer)

class 1 and 3

(Question)

600 Joules of work is used to lift a box from the ground to a height of six meters. How much work would have been done if a lever would have been used with an effort arm of 12 meters and a load arm of 6 meters?

(Answer)

600 J

(Question)

A lever with an effort arm of 10 meters and a load arm of 2 meters is used to lift an object weighing 220 Newtons to a height of 4 meters. If 400Joules of work is done, how much force must have been applied?

(Answer)

100 N

Explanation:

i just did the quick check UwU

Among the given options, the substance that expands when the temperature is lowered is water at 4 degrees C or D.

It is important to note that this is an unusual property of water since most substances contract when the temperature decreases. As the temperature decreases below 4 degrees C, the density of water starts decreasing, and its volume starts increasing. When water reaches its freezing point, it expands by almost 9%. This expansion is why ice is less dense than water. Therefore, it floats on top of water, and the water underneath remains liquid. This phenomenon is essential for the survival of aquatic life in cold climates and regions. As a result, the temperature of water bodies does not fall below 4 degrees C. This property is also known as the anomalous expansion of water.

Water at 4 degrees Celsius expands when the temperature is lowered. This is an unusual property of water since most substances contract when the temperature decreases. This phenomenon is essential for the survival of aquatic life in cold climates and regions. As a result, the temperature of water bodies does not fall below 4 degrees Celsius.

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Answer:

attracted... (not sure) close to...

Answer:

Explanation:

Deductions can reduce the amount of your income before you calculate the tax you owe. Claim certain credits and deductions on your tax return and you may be able to get a larger refund, while others may give you a refund even if you don't owe any tax.

If you have to decide to claim a credit or deduction on your taxes, you should claim all deductions and credits that you are eligible for since they both can reduce your taxes.

It should be noted that itemizing one's deductions is vital for maximizing one's tax savings. When an individual claims their deductions, it helps in reducing their taxes.

Therefore, if an individual decides to claim a credit or deduction on their taxes, the individual should claim all deductions and credits that he or she is eligible for since they both can reduce the taxes.

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In conclusion, in most cases, motor vehicles are permitted to turn right on a red light after a complete stop and when the intersection is clear. However, it is crucial to consult local traffic laws and regulations to ensure compliance and to be aware of any exceptions or specific requirements that may apply.

According to the given information, turning right on a red light is permitted after a stop and when the intersection is clear. In general, this rule applies to motor vehicles, such as cars, trucks, and motorcycles. However, the specific vehicles permitted to turn right on a red light may vary depending on the jurisdiction and local traffic laws.
To illustrate, let's consider an example where a driver approaches a red traffic light and intends to make a right turn. If the driver comes to a complete stop, checks for oncoming traffic, and ensures there are no pedestrians crossing the intersection, they are generally allowed to proceed with the right turn.
It's important to note that this rule may not apply to all types of vehicles. For instance, large commercial vehicles or buses may have specific regulations or restrictions on turning right on a red light due to their size or potential impact on traffic flow.
In conclusion, in most cases, motor vehicles are permitted to turn right on a red light after a complete stop and when the intersection is clear. However, it is crucial to consult local traffic laws and regulations to ensure compliance and to be aware of any exceptions or specific requirements that may apply.

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According to Piaget's theory of cognitive development, adaptation first occurs during the sensorimotor stage, specifically in the substage called the "circular reactions" stage.

This stage occurs between the ages of 8 to 12 months. During this period, infants engage in repetitive actions to explore and interact with their environment.

They begin to adapt their behaviors based on the responses they receive from their actions. The circular reactions involve repetitive behaviors that serve a purpose, such as shaking a rattle to hear the sound.

Through these actions, infants start to develop a basic understanding of cause and effect relationships and adapt their behaviors to achieve desired outcomes.

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Answer:

\(Q = 21.09 \times 10^{-8} C\)

Explanation:

We know from theory that the magnitude of the force between two charges is measured by the expression

\(F=\frac1{4\pi\epsilon} \frac{Qq}{r^2}\)

We know that two spheres have the same charge, and let's assume they're in a vacuum, so \(\epsilon = \epsilon_0 =8.85\times10^{-12} C^2/Nm^2\)

At this point we can solve for Q

\(Q^2 = 4\pi\epsilon F r^2 = 4\pi \times (8.85 \times 10^-12)\times (6\times 10^-3) \times (2 \times 10^-1)^2 = 444.624 \times 10^{-17} = 4446.24\times 10^-16 C^2 \rightarrow Q = 21.09 \times 10^{-8} C\)

Double check calculations for safety, as usual

The hamster is running at a linear velocity of 6.5π cm/sec.

a) To find the angular velocity of the wheel, we can use the formula:

angular velocity (ω) = 2π / time period

where time period is the time taken for one revolution. In this case, the hamster takes 4 seconds to complete one revolution, so the time period is 4 seconds. Substituting this value into the formula, we get:

ω = 2π / 4 = π / 2

Therefore, the angular velocity of the wheel is π / 2 radians/sec.

b) To find the linear velocity of the hamster, we need to know the distance traveled by a point on the circumference of the wheel in one revolution. This distance is equal to the circumference of the wheel, which is:

circumference = 2πr = 2π(13) = 26π cm

The hamster completes one revolution in 4 seconds, so its speed can be found using the formula:

speed = distance / time

Substituting the values we have found, we get:

speed = 26π / 4 = 6.5π


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The electric field strength is positive, which means that the direction of the electric field is radially outward from the charge.

The electric field strength at a distance r from a point charge q is given by:

\(E = k*q/r^2\)

where k is Coulomb's constant, which has a value of approximately\(9.0 x 10^9 N m^2/C^2.\)

In this case, we have a point charge \(q = 1 nC = 1 x 10^-9 C\)  located at a distance r = 2.5 m.

Substituting these values into the equation above, we get:

\(E = (9.0 x 10^9 N m^2/C^2) * (1 x 10^-9 C) / (2.5 m)^2\)

\(E = 1.44 x 10^-6 N/C\)

The electric field strength is positive, which means that the direction of the electric field is radially outward from the charge.

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