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alexandr402 [8]
3 years ago
9

A car travels at 12 m/s, how far does it travel in 15 seconds

Physics
1 answer:
ratelena [41]3 years ago
4 0

Answer:

180 m

Explanation:

Distance = Speed × Time

= 12 × 15

= <u>1</u><u>8</u><u>0</u><u> </u><u>m</u>

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Answer:

Hits per second=199 hit/s

Explanation:

#Given the angular velocity, \omega=33\frac{1}{3} rev/min , radius of the record r=0.1m and the distance between any two successive bumps on the groove as d=1.75mm.

The linear speed of the record in meters per second is:

v=\omega r=33\frac{1}{3}\times\frac{2\pi}{60}\times 10\times 10^{_2}\\\\=0.3843m/s\\

#From v above, if the bumps are uniformly separated by 1m, then the rate at which they hit the stylus is:

Hits/second=v/d    \ \ \ \ d=1.75mm\\\\=0.3483/0.000175\\\\=199.0385714\approx 199

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<span>reflection, rotation, translation</span>
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amm1812

Answer:

His journey took him 3 hours 15 minutes.

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