An alternating current in a wire has a voltage of 2,800 V. It needs to be reduced 70 V. The wire makes 120 turns in the primary coil of a step - down transformation. How many turns of wire need to be in the secondary coil?

How many yards are there in 10 meters? (1m = 3.28 ft)

Skylar goes to a pumpkin patch and pick out a pumpkin that has a mass of 6000 grams how many kilograms is the pumpkin

Compare the gravitational force on a 33 kg mass at the surface of the Earth (with ra- dius 6.4 * 106 m and mass 6 * 1024 kg) with that on the surface of the Moon with mass 81.3 ME and radius 0.27 RE.

An objects momentum depends on its

A change in displacement with respect to a change in time

Electricity problem (coulomb's law)

An observer (O) spots a plane (P) taking off from a local airport and flying at a 29° angle horizontal to her line of sight and located directly above a tower (T). The observer also notices a bird (B) circling directly above her.

In order for convection to occur, you must have

Explain Newton's First Law for the following. If you walk across the room holding a ball, when should you drop it to ensure that it lands on a target? Before, after or when you are directly on the target?

In what way are all forms of potential energy the same?