Describe newton's first law of motion. provide an example to support your explanation. (4 points

Which simple machine is not part of this compound machine? a. lever b. pulley c. inclined plane d. wheel and axle

What are two different ways you could find the value of a? explain these methods.

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