What does the law of conservation of energy state?

Physics

2 answers:

pishuonlain [190]3 years ago

8 0

The answer is B. good luck :)

fredd [130]3 years ago

8 0

Answer:

(B) Energy cannot be destroyed.

Explanation:

The total amount of energy within a system cannot change. Energy in one form can only be transformed into another form. This implies energy cannot be "destroyed." (neither can it be created from nothing).

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If the speed of an object doubles, how does that affect its kinetic energy? A. Halves B. Doubles C. Quarters D. Quadruples

kvasek [131]

Answer is :

D. Quadruples

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2 years ago

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10. What is the acceleration of a 1000 kg car subject to a 500 N net force?

Simora [160]

Answer:

0.5m/s^2

Explanation:

We can use the formula [ F = ma ] but solve for "a" since that is what we are looking for.

F = ma

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A toy car having mass m = 1.10 kg collides inelastically with a toy train of mass M = 3.55 kg. Before the collision, the toy tra

kkurt [141]

Answer:

$V_{ft}= 317 cm/s$

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Explanation:

a) Using the law of the conservation of the linear momentum:

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Now:

$M_cV_{ic} + M_tV_{it} = M_cV_{fc} + M_tV_{ft}$

Where $M_c$ is the mass of the car, $V_{ic}$ is the initial velocity of the car, $M_t$ is the mass of train, $V_{fc}$ is the final velocity of the car and $V_{ft}$ is the final velocity of the train.