Force = mass * acceleration
F = ma
8 N = 2 kg * a
8 = 2a
2a = 8
a = 8/2 = 4
acceleration = 4 m/s²
Answer : The correct option is, (A)
Explanation :
The formula used for speed of sound wave is:
where,
v = speed of sound wave =
= density of medium =
B = bulk modulus = ?
As the formula is,
Squaring on both the sides, we get:
Now put all the given values in the above formula, we get:
Therefore, the bulk modulus of the medium is
I SAID don’t copy from internet but u did
Explanation:
The difference between the distance and the displacement is the speed is a scalar while displacement is a vector.
<h3>What is the distance an the displacement?</h3>
The distance is the difference between two points while the displacement is the difference between two points in a specified direction. Given that speed is a scalar and the displacement is a vector. It follows that we must take the displacement when obtaining the displacement.
Thus, the distance that is covered after one lap is the circumference of the circle = 2πr = 2 * 3.142 * 25 = 31 m Then for 2 laps = 62 m
The displacement is obtained when we take the direction into consideration. Owing to the fact that the runner returns to the starting point each time, the displacement is zero.
Learn more about displacement:brainly.com/question/11934397
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