1)Calculate the force of gravity between a human adult (mass = 88 kg) and the planet Mars (mass = 6.4 *10^23 kg), when Mars is at its closest to Earth (distance = 8 *10^10 m).
2)Calculate the force of gravity on a 10 kg mass at Earth's surface. The mass of Earth is 6*10^24 kg, and its radius is 6.4 *10^6 m.
3)Calculate the force of gravity on a 19 kg mass if it were 6.4* 10^6 m above Earth's surface (that is, if it were 2 Earth radii from Earth's Center.) The mass of Earth is 6 *10^24 kg.
4)Calculate the force of gravity between a newborn baby of mass 4 kg and the obstetrician of mass 70 kg, who is 0.2 m from the baby.
2007-12-20 10:36:02 · 1 answers · asked by eaglesblueflag 1 in Science & Mathematics ➔ Physics
Please apply the law of universal gravitation: F = G*m1*m2/r^2, where F is the attractive force in N between two bodies m1 and m2, G the universal gravitational constant 6.67428x10^(-11) N*m^2/kg^2, m1 the Mass1 in kg, m2 the Mass2 in kg, r the distance in meter between m1 and m2. All the excises can be solved by the same formula. Please plug in the data and do the math. you NEED excise.
2007-12-20 16:03:55 · answer #1 · answered by Hahaha 7 · 0⤊ 0⤋