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Nezavi [6.7K]
3 years ago
15

What is the kinetic energy of a 0.5 kg soccer ball that is traveling at a

Physics
1 answer:
Charra [1.4K]3 years ago
3 0

Answer:

kinetic energy = 1/2mv²

k.E =1/2 X 0.5 X 3²

k.e = 9/4

K.E = 2.25j

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2 years ago
A solid sphere of mass 8.6 kg, made of metal whose density is 3,400 kg/, hangs by a cord. When the sphere is immersed in a liqui
creativ13 [48]

Answer:

A.1900 kg/m^3

Explanation:

We are given that

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g=9.8 m/s^2

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\rho_l\times \frac{8.6}{3400}\times 9.8=8.6\times 9.8-38

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Option A is true.

4 0
3 years ago
What is the power of a motor that transfers 450 J of energy in 9s?
Tresset [83]

Answer:

50

Explanation:

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