A 0.10 kg piece of copper is heated and fashioned into some jewlrey. Calculate the amount of heat transferred if the specific heat of copper is 385 J/kg-K. The temperature rises from 27.0°C to 100°C.​

Unpolarized light whose intensity is 1.19 w/ is incident on a polarizer. (a) what is the intensity of the light leaving the polarizer? (b) if the analyzer is set at an angle of = 41.0∘ with respect to the polarizer, what is the intensity of the light that reaches the photocell?

Alfred pushes on a heavy box, but cannot move it. the box has a lot of inertia motion friction gravity

Suppose a soccer ball is kicked from the ground at an angle 20.0º above the horizontal at 8.00 m/s. the y-velocity is determined to be 2.74 m/s. how long will the ball be in the air? assume the ball lands at the same height at which it was kicked.