a force is applied to a block causing it to accelerate along a horizontal, frictionless surfaces. the energy gained by the block is equal to the

A potential difference of 12 V is found to produce a current of 0.40 A in a wire. What is the wire's resistance?

Which force is responsible for contact forces

What is the most significant factor in determining kinetic energy?

A metal wire of resistance R is cut into two pieces of equal length. The two pieces are connected together side by side. What is the resistance of the two connected wires?

Radiation form ions by removing protons from matter as it passes through. What's it called?

A roller coaster is entering a vertical loop which has a radius of 25.0 m. If the coaster is traveling at 45.0 m/s as it enters the loop, how much is the centripetal force that you experience? (Assume your mass to be 75.

Which best describes tropical continental climate during the summer? A. clear, dry weather, B. cloudy, wet weather, C. cold, dry weather, D. hot, dry weather

At the beach, describe where or when you would see wave fronts. How are wave fronts useful to surfers?

How would the moon appear from earth if the moon did not rotate?

Block B has mass 4.00 kg and sits at rest on a horizontal, frictionless surface. Block A has mass 2.00 kg and sits at rest on top of block B. The coefficient of static friction between the two blocks is 0.400.