If two objects with different masses are pushing each other, which exerts the greater force?
the object with the greater mass exerts the greater force on the smaller object because the larger object has more inertia.
the object with the smaller mass exerts the greater force on the larger object because it requires more force to make the larger object move.
it is impossible to tell which object exerts the greater force unless we know which object accelerates.
they both exert the same amount of force on each other regardless of their mass, but in opposite directions.

Ogle–2013–blg–0723 is an exoplanet that is similar to earth in size and proximity to its star. this exoplanet has mass m=4.18×1024kg and radius r=5.66×106m. an astronaut whose weight on earth is w=735n lands on the planet. a. calculate m, the mass of the astronaut. b. calculate gp? , the acceleration due to gravity on the surface of ogle–2013–blg–0723. c. calculate wp? , the weight of the astronaut on the surface of ogle–2013–blg–0723. d. calculate v, the minimum velocity required to put an object into orbit above ogle–2013–blg–0723. e. calculate t, the time required to complete an orbit around ogle–2013–blg–0723.

What causes the formation of ocean currents?

If the work required to stretch a spring 3 ft beyond its natural length is 15 ft-lb, how much work is needed to stretch it 27 in. beyond its natural length?