A stationary 25 kg object is located on a table near the surface of the earth. The coefficient of kinetic friction between the surfaces is 0.30. A horizontal force of 300 N is applied to the object. Draw a free body diagram with the forces to scale.

Determine the force of friction

Determine the acceleration of the object. the object is not moving acceleration is at 0.

Which quantities are scalars? choose all that apply a.distance b.speed c. acceleration d.velocity

Red light strikes a metal surface and electrons are ejected. if violet light is now used with a 10% greater intensity, what will happen to the ejection rate (number of ejected electrons per second) and the maximum energy of the electrons? a) greater ejection rate; same maximum energyb) same ejection rate; greater maximum energyc) greater ejection rate; greater maximum energyd) same ejection rate; same maximum energye) none of the above answers are correct

Acar traveling at 22 m/s starts to decelerate steadily. it comes to a complete stop in 15 seconds. what is it’s acceleration?