A car travels 90 km/h. How long does it take for it to travel 400 km

Which of these correctly describes what would happen to a system if 100 J of heat energy is added to it? 1. The potential energy of the system will increase and this will increase the attraction between its particles. 2.

An electric current is flowing through a cord what will happen if a magnet is brought near the cord

Two students are looking at a brightly lit full Moon, illuminated by the reflected light from the Sun. Consider thefollowing discussion between the two students about what the spectrum of moonlight would look like.

If the primary coil of a transformer has 200 turns and is supplied with 120 v ac power, how many turns must the secondary coil have to provide 12 v ac power?

If every 10th student on a non alphabetized list of names was choose from your school to answer a survey, this group would be a A. independent sample B. random sample C. blased sample D. experimental sample

How long does it take a car to travel 450 km at 75 km/hr

A free-falling golf ball strikes the ground and exerts a force on it

What are the main activities involved in studying physics?

What is the energy that moves your arms and legs

A moving object can be in equilibrium. Explain.