Apain-relieving pill has a mass of 0.005 g. express the pillâs mass in grams using scientific notation or in milligrams. express your answer in scientific notation to one significant figure or use a prefix on the unit.

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.]