Kg. m A tennis player hits a ball and gives it a change in momentum of 3.3 over 5.0 ms.
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What is the magnitude of the net force on the tennis ball?

Which are causes of mechanical weathering? (check all that apply) a. acid rain b. plant growth c. animal actions d. carbon dioxide e. pressure release i chose b & e and got the question wrong.

If jason ii needs 15 kw of power at 300 volts to operate, what amperage of current must flow through the cable?

Estimate the kinetic energy of the neptune with respect to the sun as the sum of the terms, that due to its daily rotation about its axis, and that due to its yearly revolution about the sun. [assume the neptune is a uniform sphere with mass = 1.0×1026 kg , radius = 2.5×1010 m , rotation period 16.1 h , orbital period 6.01×104 d and is 4.6×109 km from the sun.]