Cas
carlos uses a rope to pull his car 30 m to a parking lot because it ran out of gas. if carlos exerts 2,000 n of force to
pull the rope, and the rope is at an angle of 15° to the road, how much work did he do? round your answer to two
significant figures.
1.6 x 104 j
3.5 * 104 j
5.8 x 104
o 9.0 * 104

Which are examples of projectile motion? choose all that apply a. a soccer ball rolling across the ground in the northeast direction b. a car turning a corner, so it is heading south c. a javelin flying through the air d. a tennis ball lobbed over the net

You are about to open a container of soy milk but notice that there are instructions to “shake well before serving.” the soy milk is most likely a

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.