Answer:
E) The average velocity of the car is 90.0 miles per hour in the direction of motion.
Explanation:
Given;
distance covered by the car, d = 90 miles
time taken, t = 60 minutes = 1 hour
The average velocity of the car is given by change in displacement per change in time;
V = Δd / Δt
Therefore, the average velocity of the car is 90.0 miles per hour in the direction of motion.
Answer:
The objects kinetic energy increases as it falls from some height.
Out of the four the last one is true - "<span>radiation may stick around for a long time and cause cancer". The other three are false - some effects will be long-lasting, they may affect large areas, and are not necessarily apparent immediately.</span>
The one that does not involve chemical energy would be : C. Coasting downhill on a bike
This one requires physical energy, To be categorized as chemical energy, the bond of chemical compounds has to be released
Hope this helps
