How does the article "The Old-fashioned Dream Lab" show how the science of studying dreams has Changed???

Excuse ! extra points plus ! super desperate ! the position of an object does not move relative to a reference point. relative to the reference point the object _. a.) is not moving. b.) is moving.

Which quantities are scalars? choose all that apply a.distance b.speed c. acceleration d.velocity

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?