Suppose you increase your walking speed from 4 m/s to 12 m/s in a period of 1 s. what is your acceleration?

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up

Your physics assignment is to figure out a way to use electricity to launch a small 6.0-cm-long plastic drink stirrer. you decide that you'll charge the little plastic rod by rubbing it with fur, then hold it near a long, charged wire, as shown in figure p23.56 . when you let go, the electric force of the wire on the plastic rod will shoot it away. suppose you can uniformly charge the plastic stirrer to 10 nc and that the linear charge density of the long wire is 1.0 x10-7 c/m. what is the net electric force on the plastic stirrer if the end closest to the wire is 2.0 cm away?

A750 n force is applied to an object. if the object travles with a constant velocity of 18.2 m/s calculate the power exerted by object