A) What is the period of the wave? B) What is the amplitude of the wave? C) What is the frequency of the wave? D) What is the velocity of the wave? Assume a wavelength of .5 m.

Two point charges are on the y axis. a 3.90-µc charge is located at y = 1.25 cm, and a -2.4-µc charge is located at y = −1.80 cm. (a) find the total electric potential at the origin. v (b) find the total electric potential at the point whose coordinates are (1.50 cm, 0). v

How many atoms of nitrogen are in the chemical formula ni(w on

What was the first instrument to ever record an earthquake?