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3 years ago

If you drive 125 km in 2 hours, what is your average speed

Physics

2 answers:

erma4kov [3.2K]3 years ago

7 0

Try Socratic it helped me with this type of question

sweet-ann [11.9K]3 years ago

6 0

Formula: s = d/t

s = speed

d = distance

t = time

Solve using the values we were given.

s = 125/2

S = 62.5km per hour

Best of Luck!

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Explanation: initial angular displacement = 20°, final angular displacement = 140°, average time = 2s.

We need to convert the angular displacements to radian.

Recall that 2π = 360°, hence 20° = (20 × 2π)/360 = π/9 rad

Converting 140° to radian we have that

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Average angular velocity = 7π /9 - π/9/2

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In our problem, we have two harmonics, one of order n and the other one of order (n+1) (because it is the next higher harmonic), so their frequencies are
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So, the difference between the frequencies of the two harmonics is just the fundamental frequency of the column of air in the tube, which is:
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4 years ago