plz hurry A person standing on a moving walkway travels 100 feet in 50 seconds. What equation represents this relationship? How many feet will the person travel in 10 seconds? O A. y = }t; 5 feet O B. y = 2x; 20 feet O c. y = 4x; 25 feet O D. y = 2x; 2 feet

When considering gravity acceleration and the force of acceleration, what must be true? a. the direction of acceleration must be perpendicular to the direction of the force. b. the direction of the force and the direction of acceleration must be the same as each other. c. the direction of the force and the direction of acceleration must be opposite of each other. d. the mass of the body must be the same as the acceleration of the body.

Positrons are spontaneously emitted from the nuclei of

Consider a system with two masses that are moving away from each other. why will the kinetic energy differ if the frame of reference is a stationary observer or one of the masses?