Answer: It is a mathematical way of showing accuracy.The higher the percent error, the less accurate the data set.
Explanation:
Percent error is the difference between the experimental value and theoretical value and measures the accuracy of the result found. The larger the error, lesser is the accuracy and vice versa.
The experimental value can be greater or smaller than accepted value thus percent error can be positive as well as negative. But we only consider the value without the sign.
Angular velocity and linear velocity are related by the equation:
v = ωr; r is the radius
v = 50 x 9/2
v = 225 feet per second
Answer:
Kinetic energy is 2886.5Joule
- <em><u>See image for solution</u></em>
Answer:
C
Explanation:
Power formula is power=work(joules)/time(seconds). the Work formula is force (newtons) times the distance from the starting point. Calculate work first: 60,000N x20m = 1,200,000 joules. Then plug into power formula: 1,200,000j/ 30 seconds= 40,000 W
They are cratered because of meteoroids, neither of them have an atmosphere to disintegrate the meteors, and neither of them have water to erode the craters.
