Atoy insect viewer for kids consists of a plastic container with a lens in the lid. the kid is 12 cm from the bottom of the container. the lens produced a magnified image of an insect on the bottom of the container. if the magnification is 4.0 what is the focal length of the lens?

Calculate the amount of heat produced when 18000 coulombs of charge is transferred in one hour through a potential difference of 50v

What is the magnitude of the resultant vector round your answer to the nearest tenth

The rocket is fired vertically and tracked by the radar station shown. when θ reaches 66°, other corresponding measurements give the values r = 32700 ft, r¨ = 85 ft/sec2, and θ˙ = 0.019 rad/sec. calculate the magnitudes of the velocity and acceleration of the rocket at this position.