You want to pull a 10 kg block up a frictionless ramp with an acceleration of 2.5 m/s2. what force do you need to apply along on the block along the direction of the ramp's surface if the ramp is angled at 30 degrees above the horizontal? a) 74 n b) 49 n c) 85 n 4) 110 n

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.