The engine efficiency is 64.73 %
<u>Explanation:</u>
Given data
To find the engine’s efficiency we have the formula,
Energy input- 4565 KJ
Energy output - 2955KJ
Efficiency= energy output/ energy input ×100%
=2955/4565
=0.6473 ×100
η =64.73 %
The engine efficiency is 64.73 %
Answer:
1 feet
Explanation:
Frame width = x
The length of the frame will be
(bottom and top that is why x is added twice)

The width of the frame will be

Area is given by

Solving the above equation we get

Hence width of the frame is 1 ft
Answer:
When we talk about closed economy, it means that the economy is self-sufficient. At a closed economy, no imports from the outside are brought inside a nation and no exports are sent out as well
Explanation:
Answer:
Yes
Explanation:
On the moon there is no gravity. So if there is no gravity pulling the weight down a weight can as light as a feather.
Answer:
air pressure in the air-tight bag is greater than cabin air pressure
Explanation: