How many calories are equal to one BTU? (One calorie = 4.186 J, one BTU = 1 054 J.)

a. 0.252b. 3.97c. 252d. 397

What is the value for gravitational acceleration to two decimal places in meters per second squared?

Which of these follows from Newton's laws about the energy of a moving object?

A common misconception is that an object always moves when a force acts on it. Why is this statement incorrect? Explain the concept correctly. Why do you think some people have this misconception?

1. Identify this mystery element: I am very reactive, I desperately want to get rid of my electron. When I make a compound with Chlorine it is table salt. Who am I? 2. Identify this mystery element. I am amazing and have no cares in the world.

A machine performs 482 J of work over a period of 1.5 min. How much power does the machine have?

A submarine that is in the sea what principle is that

1. It takes 26.5 N to pull a 72 kg sled across snow. What is the coefficient of friction? 2. A 565 N rightward force pulls a large box across the floor with a constant velocity of 0.75 m/s. If the coefficient of friction is 0.

A person holds onto an object for 2 minutes, but doesn't move the object. Is work done on the object?

Which two vectors add together to give a resultant with the smallest magnitude, and which two vectors add to give a resultant with the largest magnitude? in each case specify the magnitude and direction of the resultant?

The largest velocity reached by a falling object is its