Saeed applied a force of 55 N to accelerate a 10 kg box at 2 m/s2 along a horizontal surface. What is the magnitude of the frictional force?

The earth remains in orbit around the sun due to the force of gravity. how does the force of gravity exerted by the sun on the earth compare to the force of gravity exerted by the earth on the sun?

Acharge of 8.4x10^-4 c moves at an angle of 35 degrees to a magnetic field that has a field strength of 6.7x10^-3 t. if the magnetic force is 3.5 x10 ^-2 n, how fast is the charge moving?

What is the relationship between the direction of motion of the balloon and the wind currents