Circle the letter of each sentence that describes a change in velocity

a. moving object gains speed

b. a moving object changes direction

c. a moving object in a straight line at a constant speed

The speed of an electromagnetic wave is a constant, 3.0 * 108 m/s. The wavelength of a wave is 0.3 meters. What is the frequency? A. 9.0 * 108 Hz B. 1.0 * 109 Hz C. 1.0 * 108 Hz D. 9.0 * 107 Hz

Distinguish between an elastic and an inelastic collision.

Airbags will deploy no matter from what angle your car is hit.

In empty space, which quantity is always larger for X-ray radiation than for a radio wave? In empty space, which quantity is always larger for X-ray radiation than for a radio wave? Speed. Wavelength. Amplitude. Frequency.

What is the accleration of a car that travels 10 meters in 2seconds

If a car rolls gently off a vertical cliff, how long does it take to reach 90km/hr.

In the game of volleyball, what skill relates to Newton's second law

The minimum breaking distance d in feet for a typical vehicle can be modeled with the equation d (v) = 0.045v2, where v is the vehicle's speed in miles per hour.

A 2kg blob of putty moving at 4 m/s slams into a 6kg blob of putty at rest what is the speed of the to stick together blobs immediately after colliding

A stone is thrown vertically upward with a speed of 12m/s from the edge of a cliff 70 m high (a) How much later it reaches the bottom of the cliff? (b) What is its speed just before hitting? And (c) what total distance did it travel? (Ans: 5.