If you do 500 joules of work using a force of 50 newton’s, over what distance was the work accomplished

Jasmine is diving off a 3-meter springboard. her height in meters above the water when she is x meters horizontally from the end of the board is approximated by the equation h=-x^2+3x+3. what is the maximum height jasmine will reach on her dive?

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

Light traveling in a medium with a refractive index 1.19 is incident on a plate of another medium with index of refraction 1.79. at what angle of incidence is the reflected light fully polarized?