Prepwork Due 10/25 A 35 kg box is sliding across a surface at a constant speed while experiencing a leftward applied force of 120 N. calculate the force of friction acting on the box and the net force acting on the box

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.

Increasing the pressure on one spot of a fluid will increase the pressure everywhere else in the fluid a. pascals principal b. archimedes' principal c. bernoulli's principal

What types of radiation make up the electromagnetic spectrum?