What is the average velocity of a car that travels 30 kilometers due wet in 0.50

hour?

0 60 km/hr west

O 15 km/hr

O 60 km/hr

O 15 km/hr west

A surface receiving sound is moved from its original position to a position three times farther away from the source of the sound. the intensity of the received sound thus becomes a. three times as high. b. three times as low. c. nine times as high.

A rocket is launched from ground level with an initial vertical velocity (v0) of 176 ft/s. After how many seconds will the rocket hit the ground? (Hint: h (t) = - 16t2 + v0t + h0). explain.

Carla uses a table tennis ball and a volleyball to represent two astronomical bodies based on their sizes.

Rank the following from greatest energy to the least: a. A stationary 2kg ball 2m off the ground. b. A stationary 1kg ball 1.5m off the ground. c. A 1kg ball moving 3m/s, 2m off the ground. d. A 2kg ball moving 4m/s, 1.5 off the ground.

Which of the following is least like the others lamp, flash light, flare or spotlight

When an ocean plate converges with another plate, what is created on the seafloor at the line of convergence?

Calculate the angle of refraction of 30.0° light shines from water into ice. The indices of refraction for water and ice are 1.36 and 1.31, respectively. A) 19.8° B) 31.3° C) 40.9° D) 64.0°

What is the length of a simple pendulum with a period of 2.0 s?

How many electrons are necessary to produce 1.0 c of negative charge? (e = 1.60 Ã 10-19 c) ?

A car is traveling at 64 ft/s when the brakes are fully applied, producing a constant deceleration of 18 ft/s2. What is the distance covered before the car comes to a stop? (Round your answer to one decimal place.)