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bulgar [2K]
3 years ago
11

2. A volleyball player strikes a 3 kg volleyball with a velocity of 14 m/s. What is the kinetic energy of the volleyball?

Physics
2 answers:
Effectus [21]3 years ago
6 0

Answer:

2. 294 j

3. 37500 J

Explanation:

Anarel [89]3 years ago
3 0

Answer:

2)294 3)15

Explanation:

2)E=mv^2/2

E=3×14^2/2

E=3×196/2

E=3×98

E=294 J

3)E=mv^2/2

m=2E/v^2

m=2×750/10^2

m=2×750/100

m=750/50

m=15

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<span>In this case, given is η=22% and Th - Tc = 75K </span>
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<span>Lower temperature is Tc = 266 K </span>
<span>Higher temperature is Th = 341 K</span>
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