Question

Calculate the force of gravity between a newborn baby (mass = 2.6 kg) and an obstetrician (mass = 85 kg) ) who is 0.37 m from the baby. Express your answer to two significant figures and include the appropriate units.

Find the force of gravity between a planet (mass=5.9*10^ 24 kg) and the Sun (mass=2.0*10^ 30 kg) . (The average planet-Sun distance Earth (distance=9.0 x 10^ 11 m) Express your answer to two significant figures and include the appropriate units.

A 29 kg plece of metal displaces 1.9 L of water when submerged. Find the density (in kg/m^3) Express your answer to two significant figures and include the appropriate units.

Using the formula for gravity, find the force of gravity on a 7.3 kg mass at Earth's surface. (The mass of Earth of 6*10^ 24 kg , and its radius 6.4*10^ 6 m.) . Express your answer to two significant figures and include the appropriate units.

Answer 1

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