In DC motor, the split rings are made of

A) steel B) copper C) wood D) glass

Describe electrons. Location: Charge: Mass

I am the process by which rocks change over millions of years.

What is the source for geothermal energy? Question options: the sun earth's internal heat moving water biomass

As earths plates move apart at some boundaries, they collide at others, forming

How much does coast to coast membership cost?

Two copper wires with different diameters are joined end to end. If a current flows in the wire combination, what happens to electrons when they move from the larger-diameter wire into the smaller-diameter wire?

A baseball player is warming up and tosses a ball straight up into the air. The ball travels up until it reaches some maximum height, and then falls back down to the player/'s hand.

Volume can be measured in liters or cubic meters. a. T b. F

A spring with a spring constant of 1200 N/m has a 55-g ball at its end. The energy of the system is 5.5J. What is the amplitude of vibration?

Force F1 acts on a particle and does work W1. Force F2 acts simultaneously on the particle and does work W2. The speed of the particle does not change. Which one of the following must be true? a. W1 is zero, and W2 is positiveb. W1 = - W2c.