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2 years ago

State one use and one disadvantage of the expansion of materials when they are heated.

Physics

1 answer:

Reil [10]2 years ago

8 0

An example of the use of expansion of materials when they are heated is in

Thermometers. Thermometer is an instrument which is used to measure the

temperature of a place.

It contains mercury which expands as temperature increases. This is used

to accurately determine the temperature of an object.

The disadvantage of expansion of materials when they are heated can be

seen in roads as there is expansion of the surface as a result of heat

exposure leads to roads being rough thereby incurring more costs for

repairs.

Read more about Heat expansion on brainly.com/question/1166774

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14 kilometers per hour to meters per second

Alina [70]

Answer:

About 3.88 meters per second

Explanation:

14km= 14,000m

14,000m per hour

so 14,000 ÷ 60= 233.33 meters per minute

233.33÷60=3.88 meters per second

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2 years ago

The diagram above shows a metal disk of weight 1.0 N resting on an index card that is balanced on top of a glass. What is the no

pogonyaev

If the weight of the metal disk is 1.0 N, the normal force acting on the metal disk is also 1.0 N but acting in the opposite direction.

<h3>What is the normal force?</h3>

According to Newton Law, action and reaction are equal and opposite. The reaction force is equal in magnitude to the weight of an object but opposite in direction.

Having said that, if the weight of the metal disk is 1.0 N, the normal force acting on the metal disk is also 1.0 N but acting in the opposite direction.

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1 year ago

Derive Isothermal process through ideal gas.(anyone plzz!!)

zysi [14]

Answer:

Hey, bro here is the explanation....

Explanation:

Hope it helps...

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3 years ago

A student pushes a 5 kg box initially at rest along a flat, rough table with a rightward force of 10 N. The frictional force act

Pie

Answer:

Please find attached pdf

Explanation:

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3 years ago

25. Explain why the speed of sound is faster in solids than in gases. Include two other factors Chapter 17 says the speed of sou

aksik [14]

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Speed of sound also depends on its frequency and the wavelength.

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2 years ago