Potential energy, is energy due to its position.
Given: Mass m = 40 Kg; Height h = 50 m
Required: Potential energy P.E = ?
Formula: P.E = mgh P.E = (40 Kg)(9.8 m/s²)(50 m)
P.E = 19,600 J
Answer:
d. 8 feet
Explanation:
(height)^2 = (10)^2 - (6)^2
= 100 - 36
height = √64
= 8 feet
There's supposed to be a blank in the statement, where the answer is supposed to be inserted.
The question is supposed to say: "A wave is a disturbance that carries ______ from one place to another through matter or space".
To answer the question, write the word "<em>energy</em>" in the blank.
Answer:
Time = 0.317 seconds.
Explanation:
Given the following data;
Distance = 1.65km to meters = 1.65 * 1000 = 1650 meters
We know that the speed of sound in steel is equal to 5200m/s
To find the time to hear the sound of the whistle;
Time = distance/speed
Substituting into the equation, we have
Time = 1650/5200
Time = 0.317 seconds.
Therefore, it will take him 0.317 seconds to hear the sound of the whistle.
Answer: this one is tough. There is a estimated 1.2 billion drivers to help best I could. I did the math the best I could and didn’t get an answer close to the choices. Just guessing I’d guess C. 20,000 because of logic.
Explanation: I can’t help much but would love to hear how to work this out.