The secondary coil of a neon sign transformer provides 7500 V at 0.01 A. The primary coil operates on 120 V. What is the input current in the primary coil of this transformer assuming that no energy is lost in the transformer?

What color are cosmic rays?

Why would Santa Ana weather conditions improve the performance of an experiment on electric charges? Conversely, why would a rainy day NOT be a good idea?

An electron at Earth's surface experiences a gravitational force of magnitude F = (9.11*10-31 kg) ⋅ (9.8 m/s2).

Objects 1 and 2 attract each other with a electrostatic force of 18.0 units. If the distance separating Objects 1 and 2 is changed to four times the original value (i. e., quadrupled), then the new electrostatic force will be units.

Which of the follow are types of changes that can happen in the rock cycle

Plants and animals use the oxygen in the air to turn food into energy. This life process is known as what? A) digestion Eliminate B) excretion C) growth D) respiration

A column of soldiers, marching at 132 steps per minute, keep in step with the beat of a drummer at the head of the column.

Which of the following statements regarding the moon and Earth is correct? A. Earth and the moon are nearly the same age. B. Earth and the moon have nearly the same mass. C. Earth is tidally locked, while the moon spins on its axis. D.

Which is the best example of Newton's First Law of Motion? A small, lightweight ball and a large, heavy ball are dropped off the top of a very tall building. They both strike the ground at the same time.

A scientist does an experiment on mice. She feeds one group of mice regular food and a second group of mice blueberries. The scientist keeps all of the other conditions exactly the same.