A bowling ball with a mass of 5 kg is moving 5.5 m/s [W18N] on a bowling lane towards a stationary bowling ball with a mass of 2.5 kg. When the two bowling balls collide the stationary bowling ball now has a velocity of 2.5 m/s [W3N].
What is the final velocity of the 5 kg bowling ball?

Aforklift raises a 1,020 n crate 3.50 m up to a shelf. how much work is done by the forklift on the crate? the forklift does j of work on the crate.

The ratio of lift to drag l/d for a wing or airfoil is an important aerodynamic parameter, indeed, it is a direct measure of the aerodynamic efficiency of the wing. if a wing is pitched through a range of angle of attack, l/d first increases, then goes through a maximum, and then decreases. consider an infinite wing with an naca 2412 airfoil. estimate the maximum value of l/d. assume that the reynolds number is 9x10^6.

Write a hypothesis about the effect of increasing resistance on the current in the circuit. use theformat and be sure to answer the lesson question. “how do changes in voltage or resistance affect current in an electric circuit? ”