Water falls without splashing at a rate of 0.320 L/s from a height of 2.30m into

Question

Water falls without splashing at a rate of 0.320 L/s from a height of 2.30m into a 0.660-kg bucket on a scale. If the bucket is originally empty, what does the scale read 3.50 s after water starts to accumulate in it? _______________N ???

Bonus Question =) A neutron in a nuclear reactor makes an elastic, head-on collision with the nucleus of a carbon atom initially at rest.

(a) What fraction of the neutron's kinetic energy is transferred to the carbon nucleus? (The mass of the carbon nucleus is about 12.0 times the mass of the neutron.)
______________ ????

(b) The initial kinetic energy of the neutron is 1.90X 10^-13 J. Find its final kinetic energy and the kinetic energy of the carbon nucleus after the collision.

Explanation / Answer

W1 = 0.660*9.8 = 6.468 N

W2 = (3.50*0.320) * 9.8 = 10.976 N

v = 2gh = (2*9.8*2.30) = 6.7142

F3 = 0.320 * 6.7142 = 2.148544 N

W = 6.468 + 10.976 + 2.148544 = 19.6 N

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