When the period of an electromagnetic wave becomes greater, its frequency
a. increases.
b. decreases.
c. stays the same.
d. it depends on the type of electromagnetic wav

Need in all of themmm only answer if you know plsssss

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?

What ia the energy of an object because of its potential and kinetic energies