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mel-nik [20]
3 years ago
12

A car on the roller coaster begins with 0j of kinetic energy and 12,928j of potential energy and finishes the track with 3,715j

of potential energy. How much kinetic energy dose the car finish with????
Physics
1 answer:
andre [41]3 years ago
7 0

Answer:

9213 J

Explanation:

Change in Kinetic energy = Change in Potential energy

= 12,928J - 3715J

=9213 J

For more assistance: +1 (304) 223-3136

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If the net force acting on a moving object CAUSES NO CHANGE IN ITS VELOCITY, what happens to the object's momentum?
SOVA2 [1]

If the net force acting on a moving object causes no change in its velocity, the object's momentum will stay the same.

<h3>What is momentum?</h3>

Momentum of a body in motion refers to the tendency of a body to maintain its inertial motion.

The momentum is the product of its mass and velocity.

This suggests that if the net force acting on a moving object causes no change in its velocity, the momentum of the object will remain the same.

Therefore, if the net force acting on a moving object causes no change in its velocity, the object's momentum will stay the same.

Learn more about momentum at: brainly.com/question/13554527

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5 0
2 years ago
When a person holds an object, it has potential energy. How will the potential energy change if the person lifts the object abov
anygoal [31]

Answer:

While In an <em><u>ideal/isolated</u></em> system, as long as the object is not in motion, its potential energy will be the same.

However, <u>potential energy is relative</u>. On Earth, usually, it is measured with respect to gravity. <u>The higher the object, the greater the potential gravitational energy</u>. It's all relative. For the sake of this question, I would assume that potential energy increases.

Explanation:

While kinetic energy depends upon speed, potential energy is always relative to some arbitrary reference point.

Source https://www.physicsforums.com/threads/potential-energy-kinetic-energy.11481/

6 0
3 years ago
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During exercise, the amount of ____________ carried in the blood to the muscles increases.
ipn [44]
<span>The correct answer is: Oxygen

Explanation:
In order to function properly (movement etc.) during exercise, muscles require oxygen. During exercise, the depth as well as the rate of breathing increase, which in turn increases the amount of oxygen inhaled. In order to expand and contract lungs and for other bodily movements, muscles require oxygen, and for that, more oxygen is carried in the blood to muscles. Hence, the correct answer is Oxygen.</span>
8 0
3 years ago
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Can somebody please help with these
Sever21 [200]

Answer:

Fusion

Fission

Explanation:

The first problem describes a nuclear fusion process. In this process;

  • small atomic nuclei combines to form a larger one.
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The second problem describes nuclear fission,

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6 0
3 years ago
A force of 9.00 newtons acts at an angle of 19.0° to the horizontal. What is its component in the horizontal direction?
g100num [7]
It would be helpful if you draw the figure of the problem. You will see that a right triangle would be constructed by the problem where 19.0 is the angle between the hypotenuse and the base of the triangle. It is said that the force acting is said to be 9.0 N  at the said angle to the horizontal. Using trigonometric relations,

cos 19 = adjacent / hypotenuse = horizontal component / 9
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5 0
3 years ago
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