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Rama09 [41]
3 years ago
7

2. Which of the following choices best describes an object's velocity? A. The bus traveled at 50 mph for 20 minutes. B. The airp

lane traveled southwest at 280 mph. C. The car went from 35 mph to 45 mph. D. The train made several stops, with an average rate of 57 mph.
Physics
1 answer:
PtichkaEL [24]3 years ago
4 0
Answer is B. 

Hope it helped you.

-Charlie
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How much energy (in kW-h) does a 900 Watt stove use in a week if it is used for 1.5 hours each day?
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Answer:

9.45 kWh

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A sinusoidal wave is traveling along a rope. The oscillator that generates the wave completes 40.0 vibrations in 30.0s . A given
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From the solution that I have done, the wavelength in the question that we have is 31.88 cm

<h3>How to solve for the wavelength</h3>

The frequency in the question is given as 40/30 = 1.33 hz

Next we have to solve for V

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v = frequency * wavelength

we have to put in the values in the formula. This would be

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we have to divide through by 1.33 to get the wavelength. This would be

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31.88 cm = wavelength

Hence we can say that the wavelength in the question that we have here is 31.88 cm

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1 year ago
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40 dB is 20 dB more power than 20 dB is. 20 dB more means 100 times as much.
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