The 60kg skier is shown below skiing down a 35° incline with a coefficient of friction is 0.08. determine the acceleration of the skater

A150 w lamp emits light of wavelength 590 nm uniformly in all directions. what is the photon flux (photons per unit area per unit time) on a small screen at a distance 2.3 m from the lamp? assume the photons are uniformly distributed over the surface of a sphere of radius 2.3 m.

Two polarizers are oriented at 70∘∘ to one another. unpolarized light falls on them. what fraction of the light intensity is transmitted?

A2k pendulum has a speed of 1 m/s at a height of 1/2 meter