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Ronch [10]
3 years ago
12

An alcohol thermometer is preferred for a very cold region why​

Physics
1 answer:
Gwar [14]3 years ago
3 0

Answer:

freezing point of alcohol is - 117°C. So, it can measure the temperature of the very cold region.

Explanation:

Alcohol thermometer is preferred for a very cold region because its freezing point of alcohol is - 117°C. So, it can measure the temperature of the very cold region.

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Two pianos each sound the same note simultaneously, but they are both out of tune. On a day when the speed of sound is 349 m/s,
SSSSS [86.1K]

Answer:

Time period between the successive beats will be 0.1703 sec

Explanation:

We have given speed of the sound v = 349 m/sec

Wavelength of piano A\lambda _A=0.766m

Wavelength of piano  B\lambda _B=0.776m

So frequency of piano A f_1=\frac{v}{\lambda _1}=\frac{349}{0.766}=455.61Hz

Frequency of piano B f_2=\frac{v}{\lambda _1}=\frac{349}{0.776}=449.74Hz

So beat frequency f = 455.61 - 449.74 = 5.87 Hz

So time period T=\frac{1}{f}=\frac{1}{5.87}=0.1703sec

So time period between the successive beats will be 0.1703 sec

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4 years ago
A sled is pulled up to the top of a hill. At thetop of the hill the sled is released from rest and allowed to coastdown the hill
Stolb23 [73]

Answer:

a.) the speed at the bottom is greater for the steeperhill

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mgh =\frac{1}{mv^2}

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8 0
3 years ago
Which wave has a longer wavelength?
mash [69]
Wave 1 has a longer wave length, lower frequency and energy


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2 years ago
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A 2000 kg car moves down a level highway under the actions of two forces. one is a 1060 n forward force exerted on the drive whe
kipiarov [429]
Refer to the diagram shown below.

The net force acting on the vehicle is
F - R = 1060 -1010 = 50 N

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Assume that energy is not dissipated by air resistance or otherwise.
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v = 1.025 m/s

Answer: 1.025 m/s

3 0
4 years ago
Discuss the path that light takes through the human eye
amm1812

The cornea is shaped like a dome and bends light to help the eye focus. Some of this light enters the eye through an opening called the pupil (PYOO-pul). The iris (the colored part of the eye) controls how much light the pupil lets in. Next, light passes through the lens (a clear inner part of the eye).

8 0
2 years ago
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