To determine power, it is necessary to know the (2 points) a. energy required and the time it takes. b. amount of work and the distance covered. c. amount of work in a given time. d. distance and time it takes to do work.

Which form of cell division creates the sperm and egg, resulting in half of the chromosomes as the other cells?

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?

Calculate the linear momentum of a pickup truck that has a mass of 1000kg, and is traveling eastward at 20 m/s