The answer is A, it’s a sound wave
Answer:
A) is a cost to a bystander.
Explanation:
A negative externality is defined as the difference between the social cost and an economic agent from the private cost of an action.
A negative externality is a cost to a bystander as negative externality occurs when a transaction between a buyer and seller affects third party with a loss, which has no involvement in the transaction.
Hence, the correct option is A.
Answer: option c) equal to the angle of reflection.
HOPE IT HELPS YOU
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it is also known as formula for circumfrence which is 2 times pi times radius. if radius was 5 then the circumfrence would be 10pi.
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as we know that the velocity vectors are at right angles
magnitude = ?
hypotenuse of a right
triangle.
v^2 = 90^2 + 4^2
v^2 = 8116
Taking the square root of both sides here we get,
v = 90.1 m/s
hope it helps
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