pls help i need the answer

Pls Help I Need The Answer

Answers

Answer 1

Kinetic energy is the power an object has because of its motion.

Kinetic energy - increases with velocity, the energy of motion

Potential energy - increases with height

Both - stored energy, increase with mass

If we want to boost up an object, then we must follow a force. making use of force requires us to do paintings. After work has been accomplished, energy has been transferred to the object, and the object might be moving with a new consistent speed.

The kinetic energy of an item is the electricity that it possesses because of its motion. it is defined because the work needed to boost up a frame of a given mass from relaxation to its stated pace. Having gained this energy for the duration of its acceleration, the frame maintains this kinetic electricity except for its pace changes

Potential energy saved energy that relies upon the relative position of numerous components of a gadget. A spring has greater potential energy when it is compressed or stretched. A steel ball has extra capability strength raised above the ground than it has after falling to Earth.

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Related Questions

Which process is most likely to result in a gene providing antibiotic resistance to be found in a viral genome

Answers

The process most likely to result in a gene providing antibiotic resistance being found in a viral genome is horizontal gene transfer (HGT).

Horizontal gene transfer occurs when genetic material is transferred between organisms in a manner other than traditional reproduction. In this case, antibiotic resistance genes can be transferred from bacteria to viruses, particularly bacteriophages, which infect bacteria. This transfer often occurs through mechanisms like transformation, transduction, or conjugation.

Once the viral genome acquires the resistance gene, it can then introduce the gene into other bacterial populations it infects. This process contributes to the rapid spread of antibiotic resistance among bacteria, posing a significant challenge to modern medicine. So therefore the correct answer is horizontal gene transfer is the process most likely to result in a gene providing antibiotic resistance being found in a viral genome.

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6 kg of an unknown solid substance at 95℃ is dropped into 25 kg of water at 20℃. The final temperature of the mixture is 24℃. Calculate the specific heat capacity of the unknown substance.

C of water = 4186 J/Kg℃

Answers

Answer:

368.5 J/Kg℃.

Explanation:

The specific heat capacity of a substance is the amount of heat required to raise the temperature of 1 gram of that substance by 1 degree Celsius.

In this problem, we are given the following information:

Mass of the unknown solid substance: 16 kg Initial temperature of the unknown solid substance: 95℃ Mass of the water: 25 kg Initial temperature of the water: 20℃ Final temperature of the mixture: 24℃ Specific heat capacity of water: 4186 J/Kg℃

We can use the following equation to calculate the specific heat capacity of the unknown substance:

Q = mcΔT

where:

Q is the heat energy transferredm is the mass of the substance c is the specific heat capacity of the substance ΔT is the change in temperature

We can calculate the heat energy transferred as follows:

Q = m * c * ΔT

Q = 16 kg * c * (95℃ - 24℃)

Q = 16 kg * c * 71℃

We know that the heat energy transferred is equal to the heat energy lost by the water. The heat energy lost by the water can be calculated as follows:

Q = m * c * ΔT

Q = 25 kg * 4186 J/Kg℃ * (24℃ - 20℃)

Q = 25 kg * 4186 J/Kg℃ * 4℃

Q = 418600 J

Since the heat energy transferred is equal to the heat energy lost, we can set the two equations equal to each other and solve for c:

16 kg * c * 71℃ = 418600 J

c = 418600 J / (16 kg * 71℃)

c = 368.5 J/Kg℃

Therefore, the specific heat capacity of the unknown substance is 368.5 J/Kg℃.








The effective capacity utilization can be smaller than the design capacity utilization. O True False

Answers

The statement " The effective capacity utilization can be smaller than the design capacity utilization." is True because design capacity utilization refers to the maximum utilization of the system's capacity under ideal conditions.

Effective capacity utilization refers to the actual utilization of a system's capacity, taking into account factors such as downtime, maintenance, and other operational constraints. On the other hand, design capacity utilization refers to the maximum utilization of the system's capacity under ideal conditions.

In practice, it is common for the effective capacity utilization to be smaller than the design capacity utilization. This occurs due to various factors that affect the actual production or service delivery. These factors can include equipment breakdowns, scheduled maintenance, employee absenteeism, supply chain disruptions, and variations in customer demand.

The effective capacity utilization considers the real-world operational conditions and takes into account the constraints and limitations that can impact the system's performance. Therefore, it is not uncommon for the effective capacity utilization to be lower than the design capacity utilization, which represents the theoretical maximum utilization achievable under ideal circumstances.

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Halley’s comet orbits the Sun in an elliptical path as shown.During its orbit, it moves faster when it is closer to the Sun than when it is further away.What can you conclude about the comet’s potential energy as it approaches the Sun? Explain.

Answers

Given what we know, we can confirm that as Halley's comet moves closer to the sun, we can expect its potential energy to be near its maximum.

How do we know this?

We can conclude that its potential energy will increase as it comes closer to the sun, and will reach its maximum at the closest point to the sun. This is because the potential energy of an object is directly proportional to the force of gravity acting on that object. As Halley's comet approaches the sun, the sun's gravitational pull on the comet is stronger, and thus, its potential energy increases.

Therefore, given the relationship between gravity and potential energy, we can confirm that s Halley's comet moves closer to the sun, we can expect its potential energy to increase and be near its maximum.

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A planet outside of our solar system

Answers

Answer:

exoplanets is any planet beyond our solar system.

Can anyone please explain the solution to this problem?

Can anyone please explain the solution to this problem?

Answers

Answer:

the mass will move to the right

Explanation:

it is asking for the centre of mass of the block and triangle since the block is moving down toward the right the mass will change to move right

Potential energy = 0 J Kinetic energy =

Answers

Answer:drfdcfrfvgtgy6hbhhbhyg vcfrfr5tgvcfrtg vcdftghegthetrgbdgtthethe3thet

Explanation:

Sdwerftyrujtnyhbvcrdefgswthyujdehrtgfyhrjfuygtdhjueyrtgehwu3y4tgrehjwheyrgdhbnsjhfgvbdnhgfdhjsdehbrvbdensdvfgreyhsdgrftyhedggrfdhsgfv

Using a complete sentence state what would most likely happen to the production of oxygen by duckweed plans if the intensity and duration of exposure to light were increased

Answers

Answer:

This question will be answered based on general photosynthetic understanding. The answer is:

The production of oxygen would increase

Explanation:

The characteristics of most plant forms is their ability to photosynthesize i.e. use solar energy (from sunlight) to make food (chemical energy). The product of this photosynthetic process is OXYGEN gas, which is released as a waste product via the stomata on their leaves. Note that, photosynthesis cannot occur without LIGHT as it provides the energy needed for the process.

Hence, in the duckweed plant like every other photosynthetic plant, the increase in the intensity and duration of exposure to light means the rate at which photosynthesis occurs will be increased. An increased photosynthetic rate means the synthesis of the products will also be increased i.e. glucose and OXYGEN.

Wondering if you have enough rope to rappel to the ground, you drop a rock off the top, and hear the sound of it hitting the bottom 4.2 seconds later. Find the height of the cliff ignoring the time that the sound takes to travel back to you from the bottom.

Answers

Answer:

86.5 m

Explanation:

\(s = ut + \frac{1}{2} at {}^{2} \\ s = (0)(4.2) + \frac{1}{2} (9.81)(4.2) {}^{2} \\ s = 86.5m \)

Answer:

86.5 m

Explanation:

solid forms of ice last longer because there is more weight with less surface area. (True or False)

Answers

The solid forms of ice last longer because there is more weight with less surface area. This statement is false.

Factors like temperature, shape, size, humidity and impurities are some of the factor decides the time for which the ice survives. Even though larger ice particles may have more surface area than solid forms of ice, this does not always imply that they will persist longer.

In reality, due to the insulating effect of the ice itself, larger ice formations, like glaciers, can melt more quickly. In the end, a complex combination of physical, chemical, and environmental elements determines how long ice will last.

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A mass hanging from a pendulum at the end of a string of negligible mass. The string has a length of 0.84 m. With the string hanging vertically, the object is given an initial velocity of 1.4 m/s parallel to the ground and swings upward on a circular arc. Eventually, the object comes to a momentary halt at a point where the string makes an angle θ with its initial vertical orientation and then swings back downward. Find the angle θ.

Answers

Explanation:

tan(theta)=(v^2)/(length of string × g)

=(1.4^2)/(0.84 × 9.8m/s )

=1.96/(8.232)

=0.2380952381

theta=arctan(0.2380952381)

=13.4°

If a motor uses 16 W of power to exert a force of 12,000 N to lift an
elevator 8 m, how much time did it take the elevator?

Answers

Answer:

\( \longrightarrow \boxed{ \boxed{ \tt{6000 \: s}}}\)

Hope this helps! <3

-------- HappY LearninG ! --------

If a motor uses 16 W of power to exert a force of 12,000 N to lift anelevator 8 m, how much time did

in spiral galaxies, as you move farther away from the center of the galaxy what happens to orbital speeds? how does show the presence of dark matter in spiral galaxies?

Answers

In spiral galaxies, the orbital speeds of stars and other celestial objects change as you move farther away from the center. This phenomenon is described by what is known as the "rotation curve" of a galaxy.

According to the predictions of classical mechanics and Newtonian gravity, the orbital speeds of objects in a galaxy should decrease as you move away from the center. However, observations of spiral galaxies have shown that the orbital speeds remain relatively constant or even increase with increasing distance from the center. This means that stars and gas in the outer regions of a galaxy are moving at unexpectedly high speeds.

The observed flat or increasing rotation curves indicate that there must be additional mass present in the outer regions of the galaxy, beyond what can be accounted for by the visible matter (stars, gas, and dust). This discrepancy between the predicted and observed orbital speeds provides evidence for the presence of dark matter in spiral galaxies.

Dark matter is a hypothetical form of matter that does not emit, absorb, or reflect light, making it invisible to traditional astronomical observations. Its presence is inferred through its gravitational effects on visible matter.

In the case of spiral galaxies, the gravitational influence of dark matter is believed to contribute significantly to the total mass of the galaxy, extending beyond the visible disk. The extra mass provided by dark matter helps explain the observed high orbital speeds in the outer regions of the galaxy.

By studying the rotation curves of spiral galaxies, scientists can estimate the distribution of dark matter within them. Various models and simulations have been developed to describe the distribution and properties of dark matter in galaxies, with the aim of better understanding its nature and its role in the formation and evolution of galaxies.

It's important to note that while the evidence for dark matter is compelling, its exact nature and composition remain unknown. Scientists continue to conduct research and experiments to further investigate the properties and origin of dark matter.

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The type of asteroid that would appear darkest and reflect the least light is type:

A) A.
B) B.
C) C.
D) D.
E) S.

Answers

The type of asteroid that would appear darkest and reflect the least light is type option E) S.

Among the given options, type E) S asteroids would appear darkest and reflect the least amount of light. Asteroids are classified into different types based on their composition, and type S asteroids belong to the silicate group. They are made up of rocky materials, such as silicates and metals, and they tend to have a relatively low albedo.

Albedo refers to the amount of light an object reflects, and a low albedo means that the object absorbs more light than it reflects. As a result, type S asteroids appear darker because they absorb a significant portion of the incident light rather than reflecting it. Their dark appearance is due to their composition and surface properties.

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An object is dropped from a 32 m tall building. How fast will it be going when it strikes
the ground?

Answers

Answer: 25.04m/s

Explanation:

v^2 = v^2o + 2a(x-xo)

v^2 = velocity 

v^2o = initial velocity 

a = acceleration 

x = final position/distance 

xo = initial position/distance

In this case, the initial velocity is 0 since the ball wasn't moving before it was dropped. The final position is 32 as the motion ended after the ball traveled 32m. The initial position is 0. The acceleration is 9.8m/s (free fall). Plug these numbers into the formula: 

v^2 = 0 + 2(9.8)(32)

v^2 = 25.04396135 

Round to get 25.04m/s

As you walk to science class, you start out at a speed of 2 m/s, for a time of 120 seconds (you’re really excited to get to class). Then you see your friend and slow down to a speed of 0.5m/s for 30 seconds. You stop at your locker for 40 seconds (a speed of 0 m/s). You realize that you are about to be late so you hurry to class at a speed of 1 m/s and get to class just as the bell rings (4 minutes after your trip started). How far did you travel total?

Answers

The total travelled distance is • Speed, time and distance is one of the most common and important topics in the Mathematics or Quant section.

What is Speed?

Velocity is the pace and direction of an object's movement, whereas speed is the time rate at which an object is travelling along a path. In other words, velocity is a vector, whereas speed is a scalar value.

For instance, 50 km/hr west denotes the velocity of a car whereas 50 km/hr (31 mph) denotes the speed at which it is moving down a route.

The average speed of an object is determined by dividing the distance traveled by the amount of time it takes the object to reach the distance.

Therefore, The total travelled distance is • Speed, time and distance is one of the most common and important topics in the Mathematics or Quant section.

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What does a larger interquartile range mean.

Answers

IQR measures the spread of the middle half of your data. It is the range of the middle 50% of your sample
Larger values indicate that the central portion of your data spread out further.

The earth's gravity is pulling on you. Are you pulling on the earth? Explain why or why not.

Answers

Answer:

"we both attract each other with the same force but we know that attraction between two bodies depends upon their mass, greater the mass of two bodies is the force of attraction between them"(got this off the internet).

If a truck driving at 18 km/hr slams on the brakes and stops in 20 meters. how fast did the truck decelerate

Answers

Answer:

38 hope this helps

Explanation:

18 + 20 = 38

Which of the following statements is NOT true about good communication? A. Good communication makes it difficult to express wants and needs. B. Good communication helps prevent misunderstandings. C. Good communication allows for expression. D. Good communication builds healthy relationships. Please select the best answer from the choices provided. A B C D.

Answers

Communication is the act of conveying information from one person to another. .'Good communication makes it difficult to express wants and needs.'These statement is not true about good communication.

What is communication?

Communication is the act of conveying information from one location, person, or organization to another. There is a sender, a message, and a recipient for every message.

Communication, while it may appear to be a simple notion, is actually a very complex topic. The message's path from sender to the destination might be influenced by a multitude of circumstances.

Hence the option 'A' is right. 'Good communication makes it difficult to express wants and needs this statement is not true about good communication.

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the answer is A

Explanation : took the quiz on edge 2020

What is the net force needed to accelerate a 5 kg object at 3 m/s2? Suppose that in this situation you discovered that there is a 5N force of friction opposing the motion. How large is the applied force acting on the object?

Answers

The Force need to accelerate the object is by 3 m/s² is 15 N.  Suppose a friction force of 5 N acts on the motion of the object, the force needed to be applied to the object is 20 N

Force:

This can be defined as the product of the mass and the acceleration of a body. The S.I unit of force is kgm/s or Newton(N)

To calculate the force needed to accelerate a mass of 5 kg object at 3 m/s² we use the formula below.

Formula:

F = ma........ equation 1

Where:

F = Net force needed to accelerate the objectm = mass of the objecta = acceleration of the object

From the question,

Given:

m = 5 kga = 3 m/s²

Substitute these values into equation 1

F = 5(3)F = 15 N

Suppose a frictional force of 5 N acts on the motion, The force applied is

F = F'+ma............ Equation 2

Where:

F = Frictional force = 5N

Substitute into equation 2

F = 5(3)+5F' = 15+5F = 20 N.

Hence, The Force need to accelerate the object is by 3 m/s² is 15 N. Suppose a friction force of 5 N acts on the motion of the object, the force needed to be applied to the object is 20 N

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understanding where earthquakes occur can help develop ways to lessen their effects because...please help dudes ;-;

Answers

Answer:

build the resilience of the society physically, socially and economically.

Explanation:

They actually build the resilience of the society , physically or socially or economically All three .

It is 5.00 km from your home to the physics lab. As part of your physical fitness program, you could run that distance at 10.0 km/hr (which uses up energy at the rate of 700 W ), or you could walk it leisurely at 3.00 km/hr (which uses energy at 290 W ).A. Which choice would burn up more energy? 1. running.2. walking.B. How much energy (in joules) would it burn?C. Why is it that the more intense exercise actually burns up less energy than the less intense one?

Answers

Answer:

a. Walking burns up more energy.

b. 1740 kJ

c. This is because more intense exercise releases a lot of energy in a short period of time, whereas, less intense energy releases it energy gradually over a long period of time.

Explanation:

a. We know energy W = Pt where P = power and t = time.

Now for walking, t = d/v where d = distance = 5.00 km and v = speed = 3.00 km/hr and P = 290 W

So, t = d/v = 5.00 km/3.00 km/hr = 5/3 hr = 5/3 × 3600 s = 6000 s

W = Pt = 290 W × 6000 s = 1740000 = 1740 kJ

Now for running, t = d/v where d = distance = 5.00 km and v = speed = 10.00 km/hr

So, t = d/v = 5.00 km/10.00 km/hr = 0.5 hr = 0.5 × 3600 s = 1800 s and P = 700 W

W = Pt = 700 W × 1800 s = 1260000 = 1260 kJ

Since walking burns up 1740 kJ and running burns up 1260 kJ, walking burns up more energy.

b. It burns up 1740 kJ

c. This is because more intense exercise releases a lot of energy in a short period of time, whereas, less intense energy releases it energy gradually over a long period of time.

A cart with an initial velocity of 5.0 m/s experiences a constant acceleration of 2.0 m/s2. What is the cart's displacement during the first 6.0 s of its motion? *

Answers

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Installed nuclear capacity in a country is currently 10926 MW and is increasing at an annual rate of 3.02 %/year. Calculate the total amount of nuclear capacity added by the country over the next 7 years.

Answers

The country will add a total of approximately 2,559.72 MW (13,485.72 MW - 10,926 MW) of nuclear capacity over the next 7 years.

\(A = P(1 + r/100)^t\)

\(A = 10,926(1 + 3.02/100)^7\)

\(A = 10,926(1.0302)^7\)

\(A = 10,926(1.2337)\)

\(A = 13,485.72 MW\)

Nuclear capacity refers to the amount of electricity that can be generated by nuclear power plants. It is measured in units of power, typically in megawatts (MW) or gigawatts (GW). Nuclear power plants use nuclear reactions, such as nuclear fission, to generate heat, which is then used to produce steam and drive turbines that generate electricity. The capacity of a nuclear power plant depends on the number and size of its reactors, as well as its efficiency in converting heat into electricity.

Nuclear capacity is an important factor in a country's energy mix, as it can provide a stable and reliable source of baseload power that can operate 24/7. However, nuclear power also poses significant safety and environmental risks, such as the potential for accidents and the disposal of radioactive waste. As a result, the use of nuclear power is a contentious issue, with proponents and opponents offering differing views on its role in addressing global energy needs while minimizing its risks.

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The voltage between two points in a circuit is 4.2 V. If the resistance between
the points is 72, what is the current, according to Ohm's law?
A. 0.058 A
B. 76.2 A
O C. 17.1 A
O D. 302 A

Answers

Answer:

I = 0.058 [A]

Explanation:

Ohm's law is defined as voltage equal to the product of current by resistance.

\(V =I*R\)

where:

V = voltage = 4.2 [V]

I = current [amp]

R = resistivity = 72 [ohm]

Now clearing I, we have:

\(I = V/R\\I = 4.2/72\\I = 0.058 [A]\)

Answer:

A. 0.058 A

Explanation:

How do the cities in the northern hemisphere compare to those in the southern hemisphere?

How do the cities in the northern hemisphere compare to those in the southern hemisphere?

Answers

By the rate of the hemisphere

determine the total number of nonbonding electrons that should be added to each of these molecules.

Answers

Nonbonding electrons, also known as lone pair electrons, are electrons that are not involved in chemical bonding between atoms in a molecule. These electrons are typically found on the outer shell of an atom, and they play an important role in determining the chemical and physical properties of a molecule.

In order to calculate the total number of nonbonding electrons in a molecule, we need to look at the electron configuration of each atom in the molecule. We can then determine the number of valence electrons (outer shell electrons) that each atom contributes to the molecule, and subtract the number of electrons involved in chemical bonding from this total to get the number of nonbonding electrons.

For example, let's consider the molecule water (H2O). Oxygen has 6 valence electrons, while hydrogen has 1 valence electron each. Therefore, the total number of valence electrons in the molecule is:

6 (Oxygen) + 2 x 1 (Hydrogen) = 8

To form a stable molecule, oxygen will share two of its valence electrons with each of the hydrogen atoms, forming two chemical bonds. This leaves 4 valence electrons on the oxygen atom, which are not involved in bonding. Therefore, the total number of nonbonding electrons in water is:

8 (Total valence electrons) - 4 (Electrons involved in bonding) = 4

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you drive a car forwrd with a constant speed. which of the following is true about the direction of the angular velocity of the wheels, w, relative to the direction the car is moving

Answers

The correct answer from the problem above about direction of the angular velocity of the wheels, ω, relative to the direction the moving car is:

The angular velocity of the wheels, ω is used to derive how quickly the wheel can rotate in a given period.

The correct answer choice is option b.

What is meant by angular velocity?

An angular velocity can simply be defined as a vector quantity which determines how fast or the time rate a particular object revolve in relation to another point. From the context of the problem given above, the wheels of this moving object moves forward in a linear velocity below:

v = rω

Where:

v = linear velocity

r = radius

ω = angular velocity.

In conclusion, it can be therefore deduced from the explanation given above that angular velocity is the velocity along a circular path with respect to time rate.

Complete question:

You are driving a car forwrd with a constant speed. Which of the following is true about the direction of the angular velocity of the wheels, ω, relative to the direction the car is moving.

a. The greater the angular velocity of the wheels, ω, the lower the velocity of the car.

b. The angular velocity of the wheels, ω is used to derive how quickly the wheel can rotate in a given period.

c. a and b

d none of the above

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8. If a car travels 25 miles in a quarter of an hour, how long will it take to travel 115 miles?

Answers

Answer:

well that means they are driving 100 mph

so it will take them less than an hour and a half

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