A 1100 kg crate slides at a constant speed down a warehouse ramp whose angle is 22°. Determine the coefficient of kinetic friction between the crate and the ramp.

Astudent is given an assignment to demonstrate diffraction. he takes a photograph of a straw in a glass of water. the straw appears bent at the water level. which best describes this example? a) this is a good example of diffraction. b) this is an example of dispersion and not diffraction. c) this is an example of refraction and not diffraction. d) this is an example of reflection and not diffraction.

How many dots must be added to the symbol to properly represent a standard nitrogen ion? a) 1 b) 3 c) 5 d) 8

The energy released by a nuclear fusion reaction is produced when