If an object undergoes a change in momentum of 10 kg m/s in 3 seconds what is the force?

An initially unpolarized light if intensity 500 w/m^2 passes through four polarizers. the transmission axis between adjacent polarizers is 45∘. what percentage of the initial intensity is transmitted by the system?

Determine the age of a fossil if it had only one eighth of its original carbon-14 content remaining?

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?