Determine the power input for a motor necessary to lift 300 lb at a constant rate of 7 ft/s. the efficiency of the motor is ϵ = 0.65.

When an automotive battery is fully charged, the sulfuric acid and water mixture will have a specific gravity of about a. 1.0. b. 0.15. c. 2.5. d. 1.3.

What would happen to the coil if the current passing through it was too large?

An orange light (f = 5.2 * 10'4Hz) is shined on a tin surface. Assuming electrons are ejected, what is the voltage created?

An object is represented by the dot on the motion map. Which object is most likely represented by the dot? A. a car driving over the top of a hill B. a ball on a string that stopped at the top of a vertical loop C.

At a cruise ship terminal, each day on average 1000 passengers embark on ships. On average, passengers spend 5 days on their cruise before returning to this terminal.

A 113 kg man sits on the stern of a 6.3 m long boat. The prow of the boat touches the pier, but the boat isn't tied. The man notices his mistake, stands up and walks to the boat's prow, but by the time he reaches the prow, it's moved 3.

What os the term for the smallest bit into which chemical substance can be divided and still have the properties of that substance A : eletron B:molecule c:atom D:ion

How many excess electrons must be present on each sphere if the magnitude of the force of repulsion between them is 4.57*10-21 newtons?

If you could see the electric field coming off a proton you would notice that electric field lines are

We wrap a light, nonstretching cable around a 10.0 kg kg solid cylinder with diameter of 38.0 cm cm. The cylinder rotates with negligible friction about a stationary horizontal axis. We tie the free end of the cable to a 14.