Energy which travels through space in the form of waves is known as

A car moving east at 45 km/h turns and travels west at 30 km/h. What is the magnitude and direction of the change in velocity?

A 55.6 kg ice skater is moving at 1.73 m/s when she grabs the loose end of a rope, the opposite end of which is tied to a pole. She then moves in a circle of radius 0.608 m around the pole. Find the force exerted by the rope on her arms.

Why is it dangerous to connect a battery to itself. what is the term used to describe that

How do you calculate change in position? A. initial position times two B. final position plus initial position C. final position minus initial position D. initial position minus final position

A ripe acorn falls down from a branch with an initial velocity v0 = 0. The acorn's vertical displacement until it hits the ground (neglecting the effects of air) could be derived using

If a neutral atom has 44 protons in its nucleus, the number of surrounding electrons is: a. less than 44 b. 44 c. more than 44 d. unknown

What is the closest planet to earth that scientist think can support life?

Which force is most directly responsible for radioactive beta decay? electromagnetic force strong interaction gravitational interactions weak interaction

Momentum is a measure of the of an object. Which term accurately completes the sentence?

2. When a potential difference of 12 V is applied to a wire 6.9 m long and 0.33 mm in diameter the result is an electric current of 2.1 A. What is the resistivity of the wire?