No, it is not. "For every action there is an equal and opposite reaction". The 70kg person is pulling just as hard on the Earth as the Earth is on the 70kg person, i.e. about 686 N.
Of exactly the same magnitude but in the opposite direction.
the earth of course.
the moon to orbit the earth
increases 4 times the initial force
Low and high tides .
You !!!
Any body with mass exerts a gravitational force proportional to mass.This force is always attractive. So earth attracts all things.
Every planetary body (including the Earth) is surrounded by its own gravitational field, which exerts an attractive force on all objects. (http://en.wikipedia.org/wiki/Gravitation). Because of gravity of earth we stay on the earth.
The person in space exerts a force of 850 N on the earth. The fact that the person is weightless has no bearing on this question. Ever since Newton enunciated his three laws of motion we have known that action and reaction are equal and opposite. If the earth pulls him with 850 N, then he pulls the earth with 850 n.
The Earth has a higher mass, which means it exerts a larger gravitational force.
The answer is gravitational attraction. It is the attractive force between all objects that have mass. It's between you and me, you and your PC, and between everything.
Anything that has mass exerts a gravitational field, so yes, earth exerts one.
it moves
Though the Moon is much smaller than the Sun, it is closer to Earth than the Sun. So exerts a greater gravitation effect on Earth's oceans and seas.
Of exactly the same magnitude but in the opposite direction.
The earth exerts a stronger gravitational force.
The fource of Gravity.