Acamera creates a real image of a tree 40 m away. the image is formed 3.0 cm behind the lens. find the magnification.

What is the rate of 12 liters of water moving through a water hose in 4.0 minutes?

What is the coefficient of kinetic friction μk between the block and the tabletop?

On your wedding day your lover gives you a gold ring of mass 3.67 g. 48 years later its mass is 3.44 g. on the average how many atoms were abrated from the ring during each second of your marriage? the atomic mass of gold is 197 u. don't enter units