Jamal heats a metal rod to 75oc and drops it into a bucket of tap water. how does the motion of the water molecules change as a result?
a) the water molecules do not change.
b) the water molecules move and vibrate faster.
c) the water molecules move and vibrate slower.
d) the water molecules cling to the metal and freeze.

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?

The heliocentric and the geocentric models of the solar system included these central principles

What is the mass of the water that is being heated? it requires 2,500 joules to raise a certain amount of water (c = 4.186 jig c) from 20.0°c to 60.0°c. o 159 o 40 g o 63 g o 80 g