In elastic collisions, total kinetic energy and momentum are both conserved. on a frictionless track, cart 1 is moving with a constant, rightward(+) velocity of 1.0m/s. cart 2 is also moving rightward with constant velocity of 5.0m/s. after a while, cart 2 collides cart 1 from behind.(it is an elactic collision.)if the final velocity of cart 2 becomes 3.0m/s, what is the final velocity of cart 1? (show all your work.)

Answer as quick as ! kate is working on a project in her tech education class. she plans to assemble a fan motor. which form of energy does the motor convert most of its electric energy into? a. light energyb. motion energyc. sound energyd. thermal energy

Waves are used in many practical applications to support work, entertainment, and health. one example is the use of ultrasound imaging to safely track the development of a growing fetus. what is a specific example of a practical application of waves in medicine, entertainment, safety, or other fields? provide a brief explanation of how the properties of waves are useful to that application.

Ametal ring 4.20 cm in diameter is placed between the north and south poles of large magnets with the plane of its area perpendicular to the magnetic field. these magnets produce an initial uniform field of 1.12 t between them but are gradually pulled apart, causing this field to remain uniform but decrease steadily at 0.240 t/s . (a) what is the magnitude of the electric field induced in the ring? (b) in which direction (clockwise or counterclockwise) does the current flow as viewed by someone on the south pole of the magnet?