How do you find the number of ELECTRONS in an atom of an element?

Explain earth's motion, using the terms "precession" and "rotation" in your answer.

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?

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?