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2 years ago

Does a compressed spring transfer elastic energy to its surroundings?

Physics

1 answer:

shusha [124]2 years ago

5 0

Answer:

Yes

Explanation:

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3 years ago

It is important to wear protective equipment in both practice and games.

Ede4ka [16]

Answer:

It is important to wear protective equipments during games and practices.

Explanation:

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3 years ago

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3 years ago

Read 2 more answers

A mobile starts with a speed of 250m / s and begins to decelerate at a rate of 3m / s². How fast is it after 45s?

Korvikt [17]

$\large{ \underline{ \underline{ \bf{ \purple{Given}}}}}$

Speed of the mobile = 250 m/s
It starts decelerating at a rate of 3 m/s²
Time travelled = 45s

$\large{ \underline{ \underline{ \bf{ \green{To \: find}}}}}$

Velocity of mobile after 45 seconds

$\large{ \underline{ \underline{ \red{ \bf{Now, \: What \: to \: do?}}}}}$

We can solve the above question using the three equations of motion which are:-

v = u + at
s = ut + 1/2 at²
v² = u² + 2as

So, Here a is acceleration of the body, u is the initial velocity, v is the final velocity, t is the time taken and s is the displacement of the body.

$\large{ \bf{ \underline{ \underline{ \orange{Solution:}}}}}$

We are provided with,

u = 250 m/s
a = -3 m/s²
t = 45 s

By using 1st equation of motion,

⇛ v = u + at

⇛ v = 250 + (-3)45

⇛ v = 250 - 135 m/s

⇛ v = 115 m/s

✤ Final velocity of mobile = 115 m/s

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3 years ago

Do any of the atom diagrams below represent atoms of the same element?

sergeinik [125]

Atom A and atom C are the same element.

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2 years ago