Someone pls help I don’t understand this

Physics

1 answer:

ozzi2 years ago

3 0

Answer:

${ \rm{F _{ball \: on \: bat} = - F _{bat \: on \: ball} }}$

Explanation:

• This is due to the third newtons law of motion which states that "Every action has an equal and opposite reaction".

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Why are coal,nuclear,oil,and natural gas determined to be non-renewable types of energy resources

IrinaVladis [17]

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Explanation:

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3 years ago

When the displacement of a mass on a spring is 12 a the half of the amplitude, what fraction of the mechanical energy is kinetic

Sveta_85 [38]

You know that when the displacement is equal to the amplitude (A), the velocity is zero, which implies that the kinetic energy (KE) is zeero, so the total mechanical energy (ME) is the potential energy (PE).

And you know that the potential energy, PE, is [ 1/2 ] k (x^2)

Then, use x = A, to calculate the PE in the point where ME = PE.

ME = PE = [1/2] k (A)^2.

At half of the amplitude, x = A/2 => PE = [ 1/2] k (A/2)^2

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