Why do you think the moon appears to change shape as it revolves around the earth?

A 4.2 cm diameter circular loop of wire is in a 1.14 T magnetic field. The loop is removed from the field in 0.18 s. Assume that the loop is perpendicular to the magnetic field. What is the average induced emf?

An electric generator transforms mechanical energy into electrical energy this process could be done by which of these

A spring has a spring constant of 30000 N/m. How far must it be stretched (in meters) for its potential energy to be 47 J?

A small, 3 kg weight is moved from 5 m from the ground to 8 m. What is the change in potential energy?

A sailboat accelerates at a rate of 2 m/s? and has a mass of 800 kg. What is the net force acting on the sailboat? Answer

When a light shines through an object it is called

A man goes from his house to office with a speed of 57km/hr and returns to the house with a speed of 83km/hr in his car. Calculate the average speed of the car.

Identify several factors in the environment that can affect physical fitness levels.

Do Brain cells act and look like skin cells? Why or why not?

A taxi hurries for 1 3/4 hours with a constant speed of 84 mph and then for another 1 hour 45 minutes with a constant speed of 24 mph. what is its average speed for the total trip?