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mihalych1998 [28]
3 years ago
5

When a cold alcohol-in-glass thermometer is first placed in a hot tub of water, the alcohol initially descends a bit and then ri

ses. Explain.
Physics
1 answer:
Dahasolnce [82]3 years ago
6 0

Answer:

Wen we place a cold alcohol in glass in a hot tub of water then the glass will be warmed first so it will expand a little due to which the level of alcohal decreases. After some time when thermal equilibrium is achevied then the alcohol will expand more then glass as the alcohol has the greater coeficient of expansion then glass so there will be an incerease in the level of alcohol which will indicate how much high the temperature is.

Explanation:

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By the definition of wavelength, the answer is the letter D, the wavelength would decrease.

We can see in the diagram a wave motion.

A wave has some characteristics:

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Now, if we increase the distance of the crests, by the definition shown above, we will increase the wavelength.

Therefore, the answer is letter D, the wavelength would increase.

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2 years ago
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Choose the correct association for: dense bushes rain forest or jungle

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5 0
3 years ago
True or false: Balanced forces can change an object's direction?
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A test charge of -1.4 x 10-7 coulombs experiences a force of 5.4 x 10-1 newtons. Calculate the magnitude of the electric field c
VARVARA [1.3K]

Answer:

3.86×10⁶ Newton/coulombs

Explaination:

Applying,

E = F/q....................... Equation 1

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From the question,

Given: F = 5.4×10⁻¹ N, q = -1.4×10⁻⁷ coulombs

Substitute these values into equation 1

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E = -3.86×10⁶ Newtons/coulombs

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