How long would it take for a penny dropped rom the top of the Empire State Building to reach the ground if the building is 1,249ft tall? (3.28ft=1m) Round your answer to 3 significant figures. (please show the formula used and all work!)

Debbie places two shopping carts in a cart corral she pushes the first cart which then pushes a second cart what force is being exerted

Abicycle slows down when the rider applies the brakes. what type of energy transformation is involved in this example? a. kinetic energy into heat energy b. heat energy into potential energy c. potential energy into kinetic energy d. kinetic energy into mechanical energy

Two 1.20-m nonconducting wires meet at a right angle. one segment carries + 2.50 µc of charge distributed uniformly along its length, and the other carries - 2.50 µc distributed uniformly along it, as shown in fig. 21.50. ( a. find the magnitude and direction of the electric field these wires produce at point p, which is 60.0 cm from each wire. ( b. if an electron is released at p, what are the magnitude and direction of the net force that these wires exert on it?