What is the frequency of a wave if its period is 0.25 seconds?

A car is moving 60 km/h when the driver sees a signal light 40 m ahead turn red. The car can slow with an acceleration at the -.5g, where g is 9.8 m/s^2. What was her stopping distance? Assume zero reaction time. You should convert 60 km/h to m/s.

An electrically neutral atom has the same # of protons and electrons true or false?

1. A 930-kg car traveling 56 km/h comes to a complete stop in 2.0 s. What is the force exerted on the car during this stop?

A car traveling 67 mph (30 m/s) accelerates for 3 seconds in order to reach a speed of 100 mph (45 m/s). a. What is the acceleration of the car in m/s^2 b. How far does it travel in m?

Which of the following may be described as a saturated hydrocarbon? 1. Octane 2. Propene 3. Hexene 4. Ethylene

Which of the following is an example of conduction? A. A metal spoon becomes warm when placed in a cup of hot tea. B. Campers warm up while sitting by a campfire. C. A dog's bowl of water warms up out in the Sun. D.

Hink about the friction activity. Return to this activity to see it again if you need to. Explain what happened in each of the two demonstrations, and then compare them. Use the terms resistance, vacuum, gravity, velocity, and friction.

The rate at which light energy flows through a given area of space is referred to as its

How to convert km/h to m/s?

A cyclist is traveling at a constant velocity of 5.00 m/s.