What formula is needed to calculate the acceleration of object in motion?

If a box is on a ramp and is motionless, what is true about the forces acting on the box? A. They are all equal. B. Their net value is zero. C. They all add up to the weight of the box. D.

A 50kg boy jumps off the back of a 4 kg skateboard moving forward. Find the skateboard's velocity immediately after the boy jumps, assuming that the skateboard's initial velocity is 5 m/s and the boy's velocity when jumping off the back is 2.

When you apply a force to an object what pushing back on you? A. an equal but opposite force B. an equal force in the same direction as the force you are applying C. an equal force perpendicular to your force D.

Consider a high-speed bus colliding head-on with an innocent bug. The force of impact splatters the unfortunate bug over the windshield. According to Newton's 3rd Law, which is greater, the force on the bug or the force on the bus?

An artificial satellite in a low orbit circles the earth every 98 minutes. what is its angular speed in rad/s?

The inner planets or call terrestrial because they

If the amplitude of a wave is increased the frequency of the wave will

Tell how energy is transferred to the building where the heater is located

Which best describes nuclear fission? A. A nucleus spontaneously splits and absorbs energy. B. Two nuclei spontaneously combine and absorb energy. C. A nucleus collides with a neutron and splits, releasing energy. D.

A 70 kg hockey player traveling at 6 m/s collides directly with a 76 kg player traveling at - 5.4 m/s. Which way do they go after the collision and what is their velocity after the collision? (Assume that the players stick together after colliding).