If a pulley system with an ideal mechanical advantage of 2,000,000 is used in lifting a 2,000 lb. car, how far would the car move if the effort moved 2 ft.? ft. 1 x 10-3 1 x 10-6 1 x 10-9 1 x 10-12

An object is 10 cm from the mirror, its height is 1 cm and the focal length is 5 cm. what is the image height? (indicate the object orientation by including the + or - sign with the answer.) hi = cm +1 -1 +10 -10

According to newtons universal law of gravitation, which would change the parh of the ball so it traces out widest curved path possible?

What is the major limitation to the light microscope?