A ray diagram for a refracted light ray is shown. What does the dashed line represent? medium boundary normal incident ray

The human body uses chemical energy in food to produce other forms of energy. What are the other forms of energy?

Why matter has mass

The following four objects sit on a table on earth. which experiences the greatest normal force from the table? a. a book weighing 2 n b. a mug with a mass of 250 g c. a metal pen with a mass of 0.3 kg d.

How many layers does the world have?

What is the maximum acceleration of a platform that oscillates at amplitude 4.70 cm and frequency 6.50 Hz?

When a Lunar Module landed on the Moon, it used thrusters to slow its descent to the surface. When other spacecraft are returned to Earth, they use parachutes to slow their descent. Why wouldn't a parachute be useful on the Moon?

Why are mercury and the earths moon so cratered?

Why is it inaccurate to use mgy to calculate the potential energy of a satellite orbiting earth at a height one earth radius above the earth's surface

State two any uses magnet in daily life

How does changing elevation affect air pressure?