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4 years ago

When you step inside a warm ski lodge on a cold day, you find your glasses fog. why does this occur?

1 answer:

5 0

Answer: Condensation of moisture in the air onto the glasses.

Explanation:
When you come from a cold environment into a warm ski lodge, the glasses are at a much lower temperature than that of the lodge.
Because the air in the room contains moisture (water vapor), it condenses on a surface whose temperature is lower than the dew point of the room.

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3 years ago

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devlian [24]

For the motion of the plane it is given to us that it travel 15.0 km in 15.3 s

So here we can use the formula of average velocity to find it

formula is given as ratio of total displacement and total time

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here it is given that

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4 years ago

Photons are also known as beta particles. (true or false)

Llana [10]

No. Beta particles are electrons.

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4 years ago

A 27.0-kg block is initially at rest on a horizontal surface. A horizontal force of 70.0 N is required to set the block in motio

storchak [24]

(a) The block has a weight of (27.0 kg) g, and the normal force of the surface pushing upward on the block has the same magnitude, so that static friction exerts a maximum force of

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µ = (70.0 N) / ((27.0 kg) g) ≈ 0.265

(b) As it's moving, the block still has the same weight and thus feels the same normal force, (27.0 kg) g. In order to move at a constant speed, kinetic friction must exert the same force as the push, so

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3 years ago

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patriot [66]

Answer:

. Doppler ultrasound is based on absorption of sound, and other

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Explanation:

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3 years ago

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