An attacker at the base of a castle wall 3.65m high throws a rock straight up with speed 7.40m/s at a height of 1.55m above the ground. a). will the rock reach the top of the wall?
b). if so, what is the rocks speed at the top? if not, what initial speed must it have to reach the top?

What do you think car designers do if the damage caused by a crash test is too severe?

Part 1: a magnetic levitation or maglev train rides rails without touching them. explain how this works using your data. include the appropriate magnet drawing in your answer. part 2: two objects are near a bar magnet. one is about 1 cm away, while the other is 6 cm away. compare and contrast the magnetic force that affects each object. use your data to answer the question

How are series and parallel circuits simililar? both have multiple paths for electrons to travel. both require resistors in their circuits. both require a switch to complete the circuit. both have at least one path for electrons to travel.