Aligned magnetic domains are only present in which of the following?

A) permanent magnets

B) temporary magnets

C) all magnetic material

D) depends on the situation

Through which medium will sound travel most rapidly?

Which of the following processes alwaysresults in an increase in the energy of a system? A) The system loses heat and does work on the surroundings. B) The system gains heat and does work on the surroundings.

Technician A says that in a series circuit, if one light goes out, the rest of the lights stay on. Technician B says that in a parallel circuit, if one light goes out, the rest of the lights stay on. Which technician is correct?

Rozważ, dlaczego telewizyjne satelity stacjonarne krążą nad równikiem. Zastanów się, czy można byłoby umieścić satelitę geostacjonarnego tak, aby jego orbita znajdowała się cały czas nad równoleżnikiem, np. przebiegającym przez Warszawę.

A car moves with a speed of 40km/he for 15 minutes and then with a speed of 60km/hr for the next 15 minutes. Find the total distance covered by the car

A short term affect of anorexia might include wight loss

True or false / the thermal energy of an object is the total energy of the particles in a material

A bucket of water of mass 16.0kg is suspended by a rope wrapped around a windlass, that is a solid cylinder with diameter 0.350m with mass 11.4kg. The cylinder pivots on a frictionless axle through its center.

Which principle explains how fiber optics can transmit data in the form of light pulses over large distances with little loss in signal strength? total internal reflection the index of refraction the index of reflection total internal refraction

Why is copper a pure substance