A 1430 kg car speeds up from rest to 14.0 m/s in 7.00 s. lgnoring
friction, how much power did that
require?

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?

If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?

Which best term to describe a chemical reaction that absorbs energy from its surroundings? a. thermal conductor b. thermal insulator c. endothermic d. exothermic