You do 200 joules of work against gravity when lifting your backpack up a flight of stairs that is 4 meters tall. What is the weight of your backpack in newtons?

Using the work energy theorem. what is the velocity of a 850kg car after starting at rest when 13,000j of work is done to it.

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?

Based on the information about, write 1 paragraph explaining if you are in favor of nuclear power plants or against nuclear power plants. explain your reasoning