For the system form of the basic laws, the momentum of a system can change as a result of: Select one: a. Gravity acting on the system b. Body forces acting on the system c. Surface forces acting on the system d. Pressure acting on the system e. Friction acting on the system f. All of above

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

An alien spaceship is 500 m above the ground and moving at a constant velocity of 150 m/s upwards. how high above the ground is the ship after 5 seconds?

Light from two different sources are incident upon the same side of a polarizing filter. light from one source is polarized with total intensity ip, while light from the other source is unpolarized with total intensity iu. as you rotate the polarizing filter through 360 degrees, the intensity of the transmitted light on the other side varies by a factor of 9. what is the relative intensity of the initial polarized source to the unpolarized source, or ip/iu?