Answer:
Efficiency = 77%
Explanation:
Input energy = 570 J
Output energy = 440 J
To find the efficiency;
Substituting into the equation, we have;

Efficiency = 77.19 ≈ 77%
Therefore, the efficiency of the engine is 77 percent.
![[Hello,BrainlyUser]](https://tex.z-dn.net/?f=%5BHello%2CBrainlyUser%5D)
Answer:
False
Explanation:
Some places are more endowed than others.For example, some regions have lots of water (ocean and seas). While others have lots of minerals and forestlands. In addition, other have metallic rocks, wildlife, fossil fuels, and so on. Thus, we can conclude that Natural resources are not evenly distributes across the world.
[CloudBreeze]
Answer:
-2m/s^2
Explanation:
final velocity = 20m/s
initial velocity = 50 m/s
time taken = 60 s
20-50=30m/s
30/60 = -2
Three moons can fit inside the volume of the sun.
<h3>What is the moon?</h3>
The moon is a non luminous body found in the space. It could cause a solar eclipse when it comes between the sun and the earth.
Since the Earth’s diameter is about 8,000 miles and the Moon’s diameter is about 2,000 miles, to obtain the number of moons that could fit inside the sun we have;
8,000 miles/ 2,000 miles = 3
Hence, three moons can fit inside the volume of the sun.
Learn more about the moon:brainly.com/question/13538936
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