Acceleration (magnitude anyway) = (change in speed) / (time for the change) .
Change in speed = (10 - 30) = -20 m/s
Time for the change = 4.0sec
Magnitude of acceleration = -20/4 = <em>-5 m/s² </em>
Answer:
52.47706 mph
54.5 mph
Explanation:
The average speed is given by
Julie's average speed on the way to Grandmother's house is 52.47706 mph
Average speed on the return trip is 54.5 mph
<span>The process shown in this diagram contributed great amounts of heat to the young planet Earth and is best known as radioactive
decay. Decay is known to release large amounts of heat. </span>
Answer:a sound wave in a certain material is 18.0 cm. The
frequency of the wave is 1900 Hz. What is the speed of
Explanation:
