A red bumper car that weighs 700kg is traveling at 5m/s toward a blue bumper car of a mass 500kg traveling at -3m/s if the 700kg Red car is traveling at 1m/s after the collision what is the final velocity of the 500kg car?

Using a wheel and axle, a farmer is trying to lift a bucket of water from the bottom of a well. the larger wheel has a radius of 40 cm compared to the axle that has a radius of 10 cm. if a bucket of water is 50 n, then how much effort is required to raise it? 12.5 n 200 n 2 n 500 n

Determine the maximum r-value of the polar equation r =3+3 cos 0

Electromagnetic induction. a coil of wire contains n turns and has an electrical resistance r. the radius of each turn is a. initially, inside the coil there exists a uniform magnetic field of magnitude b0 parallel to the axis of the coil. the magnetic field is then reduced slowly. the current induced in the coil is i. how long does it take for the magnitude of the uniform field to drop to zero?