Despite a very strong wind, a tennis playermanages to hit a tennis ball with her racquetso that the ball passes over the net and landsin her opponents court. consider the following forces: 1 - a downward force of gravity.2 - a force by the "hit".3 - a force exerted by the air. which of the above forces is (are) acting onthe tennis ball after it has left contact withthe racquet and before it touches the ground? 1. 2 and 32. 1 only3. 1, 2 and 34. 1 and 25. 1 and 3

Describe uniform velocity and variable velocity in short

Amass attached to a spring is displaced from its equilibrium position by 5cm and released. the system then oscillates in simple harmonic motion with a period of 1s. if that same mass–spring system is displaced from equilibrium by 10cm instead, what will its period be in this case? a mass attached to a spring is displaced from its equilibrium position by and released. the system then oscillates in simple harmonic motion with a period of . if that same mass–spring system is displaced from equilibrium by instead, what will its period be in this case? a) 0.5sb) 2sc) 1sd) 1.4s

Imagine an isolated positive point charge q (many times larger than the charge on a single proton). there is a charged particle a (whose charge is much smaller than charge q) at a distance from the point charge q. on which of the following quantities does the magnitude of the electric field created by charge q at particle a's position depend? check all that apply. the type of the charge on the charged particle athe relative orientation between q and a (while the distance between q and a is fixed)the specific location of the charged particle a (while the distance between q and a is fixed)the amount of the charge on the point charge qthe specific location of the point charge q (while the distance between q and a is fixed)the distance between the point charge q and the charged particle athe amount of the charge on the charged particle a