For an object sitting on a surface that has a maximum force of static friction Fs, max and a normal force Fn, which equation can be used to calculate the
coefficient of static friction?

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.

In order to place a satellite into orbit, it requires enough fuel to supply the necessary mechanical energy. into what types of mechanical energy does the fuel get transformed?

Acar travels in reverse. it covers 150 meters in 12 seconds what is the velocity of the car what is the speed of the car