Which of the following is a simple machine?

An airplane starts from rest and reaches a takeoff velocity of 60.0m/s due north in 4.0s. How far has it traveled before take off?

What is the kinetic energy of a 2000 kilogram boat moving at 5m/sec?

A 100-year flood is the flooding elevation that has a one percent chance of happening each year. Why is the name misleading

What factor causes the seasons? A: Rotation of earth's axis B: The tilt of earth's axis with respect to the sun C: The appearance of the moon D: An eclipse

What information could you use to determine the atomic number of an unknown element that has a mass number of 22?

According to Einstein's special theory of relativity, the speed of light in a vacuum would be 3.0 108 m/s in which frames of reference? A. All frames of reference, regardless of acceleration B. Frames of reference that are accelerating C.

Neglect air resistance in this question. If you drop a ball from a height of 4.9 m, it will hit the ground 1s later. If you fire a bullet exactly horizontally from a height of 4.9 m, it will also hit the ground 1s later. Explain.

If a car decelerates at a rate of 5.1 m/s2, and if its initial speed was 24 m/s. How long will it take the car to stop?

Why do automobiles rust more easily in wet climates than drier climates?

You are preparing to do a hard task and so you say to yourself, "I can do it!" What is this an example of?