A train is moving 30.0 km/h [w] relative to the ground. a passenger on the train is walking towards the back of the train at 5.0 km/h [e] with respect to the train. what is the passenger's velocity relative to the ground?

A man pushes a drum of oil 10kg up an incline OA. If OA is 5m and AB is 3m, what is the potential energy of the drum at A.

How many miles is the moon from the earth

3x - 4 > 4x - 8 simplify

Red light from three separate sources passes through a diffraction grating with 6.60*105 slits/m. The wavelengths of the three lines are 6.56 * 10-7m (hydrogen), 6.50 * 10-7m (neon), and 6.97 * 10-7m (argon).

How does light waves change from air into water

The planet Krypton has a mass of 7.6 * 1023 kg and radius of 1.7 * 106 m. What is the acceleration of an object in free fall near the surface of Krypton? The gravitational constant is 6.6726 * 10-11 N · m2 / kg2. Answer in units of m/s 2.

An input force of 50. newtons is applied through a distance of 10. meters to a machine with a mechanical advantage of 3.

Ask Your Teacher In a choir practice room, two parallel walls are 4.00 m apart. The singers stand against the north wall. The organist faces the south wall, sitting 0.680 m away from it. To enable her to see the choir, a flat mirror 0.

What Could be the control in an experiment to measure the effects of gas additives on fuel

Two or more atoms can be held together through shared