The efficiency of an average gasoline-powered car is about 20%. This means
2 answers:
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Answer:
800cm²
Explanation:
Given parameters:
radius of the coin = 20cm
Unknown:
Surface area of the coin = ?
Solution:
A coin is made up of two faces;
Surface area = 2(πr²)
Insert the parameters and solve;
Surface area = 2()
Surface area = 800cm²
As for me, there are two suitable answers for the question represented above and here is a short explanation why I consider these two to be correct :
D. The horizontal velocity of the projectile and <span>B. The length of time before it lands
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-- this led me to answers! Hope everything is clear! Regards!<span>
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D. The horizontal velocity of the projectile and <span>B. The length of time before it lands
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