A 20.0 kg cart moves down a level hallway with a velocity of 6,50 m/s. A constant 10 N force acts on the cart, slowing its velocity to 1.20 m/s. How far did the cart move while the force
acted?

(**i would really appreciate if this was answered soon** ) which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?

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?

What is the name of the perceived change in a sound wave’s frequency due to motion between the observer and the sound source?