Pressure is inversely proportional to the speed.
johnmulu answered the question on February 11, 2017 at 09:07
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State one factor that affects the speed of sound in solid.
Date posted: February 11, 2017. Answers (1)
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Date posted: February 11, 2017. Answers (1)
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Date posted: February 11, 2017. Answers (1)
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Date posted: February 11, 2017. Answers (1)
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Date posted: February 11, 2017. Answers (1)
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Date posted: February 11, 2017. Answers (1)
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A mine worker stands between two vertical cliffs 400 m from the nearest cliff. The cliffs are x distance apart. Every time he strikes the rock once, he hears two echoes; the first one after 2.5s, while the second follows 2s later. From this information, calculate:
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Date posted: February 11, 2017. Answers (1)
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Date posted: February 11, 2017. Answers (1)
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(Take the speed of light as 3.0 X 108ms-1)
Date posted: February 11, 2017. Answers (1)
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Date posted: February 11, 2017. Answers (1)
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Date posted: February 11, 2017. Answers (1)
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Water waves are observed as they pass a fixed point at a rate of 30 crests per minute. A particular wave crest takes 2s to travel between two fixed points 6m apart.
Determine for the wave:
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ii) The wavelength
Date posted: February 11, 2017. Answers (1)
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Date posted: February 11, 2017. Answers (1)
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Date posted: February 11, 2017. Answers (1)
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Date posted: February 11, 2017. Answers (1)
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Date posted: February 11, 2017. Answers (1)
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A spring extends by 6 cm when supporting a mass of 0.06 kg on earth. When the spring is used to support the same mass on the moon, it extends by 1 cm. Determine the moon's gravitational strength. (Take gravitational field strength on earth as 10 Nkg-1)
Date posted: February 11, 2017. Answers (1)
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Date posted: February 11, 2017. Answers (1)
- An object of weight 20 N attached at the end of a spring causes an extension of 0.5 cm on the spring(Solved)
An object of weight 20 N attached at the end of a spring causes an extension of 0.5 cm on the spring.
a) Determine the spring constant of the spring
b) Determine the weight of an object that would cause an extension of 0.86 cm when attached at the end of the same spring
Date posted: February 11, 2017. Answers (1)
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Date posted: February 11, 2017. Answers (1)