What is an electromagnet? A. a solenoid with a ferromagnetic core B. a magnet that's electrically pulsed C. a solenoid with no core D. All of the above E. none of the above

What is the average speed of a car that traveled 300.0 miles in 5.5 hours

Vaccines are used to prevent disease. they are given to patients as dead or weakened forms of a virus. which disease would most likely have a vaccine? diabetes flu cancer malaria

Definition of heat in own words

No café de manhã de Débora são servidas duas jarras contendo massas iguais de leite, sendo una de leite gelado e a outra de leite quente Débora afirma que a jarra com leite gelado tem menos calor que a jarra com leite quente.

If a 100Ib women walks up a flight of stairs to get to the top of a 100 meter building. How much work did she perform?

How are water bottles recycled?

The electromagnetic waves that have the lowest frequency is called

A bullet is fired horizontally with an initial velocity of 144.7 m/s from a tower 11 m high. if air resistance is negligible, what is the horizontal distance the bullet travels before hitting the ground?

A 0.2 kg conductor of length 0.8 m carries 2 ampere current to the right in a magnetic field. What is the magnitude and the direction of the magnetic field acting on the conductor if the net force on the rod is zero?

A model rocket with a mass of 0.181 kg is launched into the air with an initial speed of 92 m/s. How much kinetic energy will the rocket have at a height of 164 m? Assume there is no wind resistance.