A cannonball is launched at an angle with a horizontal speed of 18m/s and a vertical speed of 25m/s. Solve for how long the cannonball will be in the air.

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.

Mike walks 100 meter north, then walks 30 meters south. after this, he walks another 10 meters north. what is the magnitude of his total displacement during this walk,in meters?

Acompound machine is also called a machine. a. force b. simple c. complex d. directional