I BELIVE the answers is it is A
Answer:
0.784
Explanation:
Efficiency is the ratio of energy out over energy in.
We know the energy in was 1250 J.
The energy out is the change in potential energy of the box:
PE = mgh
PE = (25 kg) (9.8 m/s²) (4 m)
PE = 980 J
So the efficiency is:
e = 980 J / 1250 J
e = 0.784
Answer:
PE = MGH. 1375 x 9.8 x 2. = 26950 joules
Explanation:
First do 1375 x 9.8 which is MG then times it by 2 which is H
Mass x Gravity x Height
the gravity will always be 9.8
I would love a brainliest
That is might thick wire. I'm not sure I've seen anything with 1/5 inch diameter.
The answer is A.
That is the exact diameter attributed to AWG 4 wire.
Answer:
Cirrocumulus clouds are usually seen in the winter and indicate fair, but cold weather. In tropical regions, they may indicate an approaching hurricane. Altostratus clouds are gray or blue-gray mid level clouds composed of ice crystals and water droplets. The clouds usually cover the entire sky.
Explanation: