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jek_recluse [69]
4 years ago
6

According to a rule-of-thumb, each five seconds between a lightning flash and the following thunder gives the distance to the fl

ash in miles. (a) Assuming that the flash of light arrives in essentially no time at all, estimate the speed of sound in m/s from this rule. (b) What was your average speed?
Physics
1 answer:
jolli1 [7]4 years ago
4 0
<span>There are approximately 1600 meters/mile. Estimating a five second per mile delay in the arrival of the sound, then the estimate of the speed of sound is (a)1600/5 or 320 meters/sec or (B) 320 x 60 sec x 60 min / 1600 m/mile or about 720 miles/hour.</span>
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faltersainse [42]
204 ft = 62.2 m
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Answer:

3947.6 N

Explanation:

Centripetal Force: This is the force that tend to moves a body towards the center of a circle during circular motion.

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F = mω²r ........................ Equation 1

Where F = Centripetal force, ω = angular velocity, r = radius.

Where π = 3.1415

Given: m = 4 kg, ω = 0.5 rev/s = (0.5×2π) rad/s = 3.1415 rad/s, r = 100 m.

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F = 4(3.1415)²(100)

F = 3947.6 N

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3 years ago
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k0ka [10]

Answer:

mechanical energy

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Mechanical energy reffered to as

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As the tire is sitting on top of a ramp, it posses "potential energy" as it is released and rolls down the ramp the potential is converted to Kinectic energy

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