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Zarrin [17]
4 years ago
11

Electromagnetic waves are ____________ (one thousand/one million) times faster than sound.

Physics
2 answers:
spayn [35]4 years ago
5 0

Electromagnetic waves in air are 874,000 times as fast as sound waves.

I guess that's closer to <em>one million</em> than it is to one thousand.

vesna_86 [32]4 years ago
3 0

Answer:

one million

Explanation:

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The atmosphere pressure can support mercury in a tube, which the upper end is closed, up to 0.76 meter. If the mercury is replac
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Answer:

Maximum height the atmosphere pressure can support the

water=10.336 m

Explanation:

We know that ,

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Case 1 - Mercury in the tube

Density\ of\ mercury =\rho_1\\and\ height\ attained\ for\ mercury\ column = h_1

Case 2 - Water in the tube

Density\ of\ water =\rho_2\\and\ height\ attained\ for\ water\ column = h_2

Since atmospheric pressure is same

.P=h_1\cdot\rho_1\cdot g = h_2\cdot\rho_2\cdot g

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6 0
4 years ago
Many of the headstones in graveyards are made of granite. What are these granite headstones turning into?
8_murik_8 [283]

The given question is incomplete as the options are missing. The options of this question are as follows-

a) limestone deposits in the soil beneath them, and ions that wash away

b) magnesium-bearing basalt in the soil beneath them, and ions that wash away

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Option (C)

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According to the given condition, these rocks constantly interacts with the wind, water, and other factors, as a result of which the rock weathers and creates sediments such as clays, sand and rust particles which are mostly deposited beneath the headstones and some are even washed away by the agents such as wind and water.

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8 0
3 years ago
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3 years ago
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