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3 years ago

What is the relationship between the speed of an object and its kinetic energy?

Physics

2 answers:

VladimirAG [237]3 years ago

5 0

Answer:

For the purposes of your question, we can think of speed and velocity as being the same thing. Therefore, the kinetic energy of an object is proportional to the square of its velocity (speed). In other words, If there is a twofold increase in speed, the kinetic energy will increase by a factor of four.

Explanation:

Helga [31]3 years ago

5 0

The kinetic energy of an object is directly proportional to the square of the speed of the object.

<u>Explanation: </u>

The kinetic energy is the measure of energy exerted by the object during its state of motion. The kinetic energy depend on the mass of the object and the speed the object is moving. So, the kinetic energy is related to square of the speed of the object.

$\text { Kinetic energy }=\frac{1}{2} \times \text { mass of the object } \times \text { (velocity of the object) }^{2}$

Thus, kinetic energy is directly proportional to the square of the speed of the object. So, as the speed of the object increases the kinetic energy increases double the times of its speed of the object.

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Pavlova-9 [17]

Answer:

If child weight is equal to rope force then child will move with uniform speed

or we can say that the child will remain at rest in his position

Explanation:

As we know that child is hanging by rope

so here there will be two forces on the child

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2) Tension in the rope which act vertically upwards

Now if child will accelerate upwards then tension force must be more than the weight of the child

If tension force is less than the weight then child will decelerate and his speed will decrease

if tension force is equal to child weight then in that case the child will remain at rest or it will move with same speed

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2 years ago

A 9V battery produces a 1.5A current in a piece of wire. What is the resistance of the wire?

MAVERICK [17]

Explanation:

Using Ohm's Law and a bit of substitution, we can use voltage divided by current to solve for resistance. Doing that, we'll get 6 Ohm.

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2 years ago

Everyone's favorite flying sport disk can be approximated as the combination of a thin outer hoop and a uniform disk, both of di

Umnica [9.8K]

Answer:

The length of the boomerang is 0.364 m

Explanation:

The moment of inertia is:

$I=\frac{1}{2} m_{d} r^{2} +m_{h} r^{2}$

Where

md = 0.05 kg

mh = 0.12 kg

r = d/2 = 0.273/2 = 0.1365 m

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The length of the boomerang is:

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2 years ago

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Answer:weak nuclear

Explanation:

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Answer:

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2 years ago