A girl pulls a wagon along a level path for a distance of 44 m. The handle of the wagon makes an angle of 22º above horizontal. If she pulls on the handle with a force of 87 N, how much work is done?

What is the earliest point in the universe that we can observe? why can’t we see back further than this?

If a sphere and a cure have the same mass and are propelled up a ramp with the same force, which would travel father up the ramp? explain.

The a992 steel rod bc has a diameter of 50 mm and is used as a strut to support the beam. determine the maximum intensity w of the uniform distributed load that can be applied to the beam without risk of causing the strut to buckle. take f.s. = 2 against bucklin