An electric heater is constructed by applying a potential difference of 120 v to a nichrome wire that has a total resistance of 6.00. find the current carried by the wire and the power rating of the heater.

A scooter has a mass of 250. Kg. A constant force is exerted on it for 60.0 S. during the time the force is exerted, the scooter increases its speed from 6.00 m/s to 28.0 m/s.

What is the potential energy of a 1.0 kg mass 1.0 m above the ground?

A solid sphere and a solid cylinder, both uniform and of the same mass and radius, roll without slipping at the same forward speed. it is correct to say that the total kinetic energy of the solid sphere is

When you jump from a height to the ground, you let your legs bend at the knees as your feet hit the floor. Why we do this in terms in physics in momentum?

T Object]User: Which of the following does not affect the electrical resistance of a body? A. Material composing the body B. Temperature of the body C. Length of the body D. Bodies directly surrounding the body

A 68kg man is carrying a box with a mass of 7 kg what is the weight of the man and the box together

What does Newton's third law say about why momentum is conserved in collisions? 1. Equal forces act for unequal times, so the change in momentum for both objects must be equal. 2.

A notebook sitting on a desk has 19 j of potential energy. What is the total mechanical energy of the notebook?

If an electric circuit is not grounded, it is best to reach out and touch it to provide the ground

A 1.41 µF capacitor charged to 51 V and a 2.49 µF capacitor charged to 31 V are connected to each other, with the two positive plates connected and the two negative plates connected. What is the final potential difference across the 2.