2 years ago

When the frequency of an electromagnetic wave increases, its energy

Physics

2 answers:

OverLord2011 [107]2 years ago

8 0

The energy stays the same

STatiana [176]2 years ago

4 0

Answer:

Decreases APEX verified

Explanation:

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Initial momentum, $P_i= 7\ kg-m/s$

Final momentum, $P_f= 22\ kg-m/s$

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We need to find the force of a lead ball. We can use here the impulse momentum theorem.

$\text{Change in momentum}=F\times t$

F is force

$P_f-P_i=Ft\\\\F=\dfrac{P_f-P_i}{t}\\\\F=\dfrac{22-7}{31}\\\\F=0.483\ N$

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