A wheelchair is being pushed up a ramp at a constant acceleration for 17.5 s, at the bottom of the ramp the chair is at rest. At the top of the ramp, the velocity is 0.5 m/s.
The weight of the chair is 65kg. what is the net force? (hint: solve for acceleration using
1D motion equations then plug into f=Ma)
0.27 N
1.9 N
2.3 N
3.7N
32N

While standing outdoors one evening, you are exposed to the following four types of electromagnetic radiation: yellow light from a sodium street lamp, radio waves from an am radio station, radio waves from an fm radio station, and microwaves from an antenna of a communications system. rank these type of waves in terms of increasing photon energy.