How many states in the world are there?

Which of the following is a correct formula of speed

Chance drives her scooter 7 kilometers north. She stops for lunch and the drives 5 kilometers east. What distance did she cover? What was her displacement?

In Physics lab, Ellen has been given the task of constructing a simple motor. She must find common household items at home and bring them to class the following day.

A standard of living that is below the minimum level considered adequate by society.

A 0.065-kg tennis ball moving to the right with a speed of 15 m/s is struck by a tennis racket, causing it to move to the left with a speed of 15 m/s. if the ball remains in contact with the racquet for 0.

Why is friction between moving parts of machines undesirable?

What holds down earths atmosphere in its place?

A person catches a ball with a mass of 145 g dropped from a height of 60.0 m above his glove. His hand stops the ball in 0.0100 s. What is the force exerted by his glove on the ball? Assume the ball slows down with constant acceleration.

State the law of conservation of energy in your own ords

The malfunction indicator light in an OBD II system is flashing. Technician A says that this simply indicates a soft failure. Technician B says this means the problem could be damaging the catalytic converter. Who is right? A. Technician A only B.