A person of mass m stands on roller skates facing a wall. After pushing against the wall with a constant force F he moves away, reaching speed v after a distance d. What is the work done by F?

Suppose we have no idea what the voltages of our batteries are. What must these voltages be if a 100 amp current? ows uniformly across all three loops of the circuit above?

Tamara sprays a garden hose at her brother who is 20 feet off the ground in a tree. how would the speed of the water as it comes from the faucet compare to the speed of the water as it hits her brother? explain.

What is an essential characteristic of an object in equilibrium? Zero velocity Zero acceleration Zero momentum Zero energy

How much power does it take to do 500J of work in 10 sec

What role does the spark from the igniter play in the reaction that takes place when propane is burned in a gas grill? a The spark provides enough energy to break the bonds of the product molecules and get the reaction started.

Which form of cell division creates the sperm and egg, resulting in half of the chromosomes as the other cells?

The effects on marijuana can last up to

A ball is dropped from an initial height and allowed to bounce repeatedly. On the first bounce (one up-and-down motion), the ball reaches a height of 32 inches. On each successive bounce, the ball reaches 75% of its previous height.

An inductor with an inductance of 3.50 H and a resistance of 8.00 Ω is connected to the terminals of a battery with an emf of 4.00 V and negligible internal resistance.

An example of a decomposition reaction is A. AB>A+B B. AX+B>A+BX C. A+B>AB D. AX+BY>AY+BX