An object is placed 30 cm in front of a f=+15 cm lens. a lens f=-10 cm is placed 45 cm from the first lens. draw the 3 principal rays to explain the location of the final image.

Standing side by side ,you and a friend step off a bridge at different times and fall for 1.6s to the water below. your friend goes first, and you follow after he has dropped a distance of 2.0m. when your friend hits the water, is the seperation between the two of you 2.0m or more than 2.0m? verify your answer with a calculation.

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

Aforce of 8,480 n is applied to a cart to accelerate it at a rate of 26.5 m/s2. what is the mass of the cart? 865 kg 320 kg 12.1 kg 3.12 kg