Answer:
beacause it's contracts
Explanation:
when using a large bottomed glass the hot water cools that's why is good to use thin bottomed glass
Answer:
speed = 7.9 m/s
Explanation:
speed = total distance / time taken
speed = 300 / 38
speed = 7.89473684 m/s
to the nearest tenth
speed = 7.9 m/s
The total amount of energy per hour is 
Explanation:
In this problem we are told that the amount of energy reaching a square meter in the United States per hour is

The total surface area of the United States is

And converting into squared metres,

Therefore, the total energy reaching the entire United States per hour is given by:

Learn more about energy and power:
brainly.com/question/7956557
#LearnwithBrainly