A person is straining to lift a large crate, without success because it is too heavy. We denote the forces on the crate as follows: force the person exerts on the crate, normal force exerted on the crate by the floor, and weight force exerted on the crate by the earth. Required:
How are the magnitudes of these forces related while the person is trying unsuccessfully to lift the crate?

Will give brainliest! which statement best describes the difference between strong nuclear forces and weak nuclear forces? weak nuclear forces are involved when certain types of atoms break down. strong nuclear forces are responsible for holding atoms' nucleus together. weak nuclear forces hold bonds between atoms together. strong nuclear forces hold together the nucleus of an atom. strong nuclear bonds prevent atoms from falling apart. weak nuclear bonds prevent compounds from falling apart. strong nuclear forces are involved in breaking electrons from their shells. weak nuclear forces hold protons in the nucleus.

A100-watt light bulb illuminates a solar cell. the electricity from the solar cell operates a water pump that delivers 1 watt of power. what is the efficiency of the system?

Photons with the highest energy have the longest period