PHYSICS HIGH SCHOOL

Humidity can be measured using human _____.

Answers

Answer 1
Answer: can be measured by using humans hair
Answer 2
Answer: It says on a website that humidity can be measured by human hair.

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Which is not true about neutron? (a) It is neutral particle (b) It is highly unstable in nature (c) It is present in the nucleus. (d) It contributes to the most of the atom​

Answers

(b) It is highly unstable in nature. Neutrons are actually quite stable and are present in the nucleus.

Condensation nuclei are particles of atmospheric dust around wich______.A.cloud droplets form
B. Ozone collects
C. Evaporation occurs
D.winds form

Answers

A! If you think of droplets as cells then it makes a lot more sense that it would be called a condensation nuclei 

Final answer:

Condensation nuclei are small particles in the atmosphere where water vapor condenses to form cloud droplets, making option A the correct answer. They are essential for cloud formation.

Explanation:

Condensation nuclei refer to small particles typically present in the atmosphere, on which water vapor can condense to form cloud droplets.

This means option A is the correct answer.

These nuclei can be composed of various substances like dust, volcanic ash, sea salt, etc. They are crucial for cloud formation, and without them, water vapor would need to supercool to a very low temperature before it could form droplets.

Learn more about Condensation nuclei here:

brainly.com/question/35490017

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A seismogram shows that P waves travela. at the same speed as surface waves.
b. more slowly than S waves.
c. at the same speed as S waves.
d. faster than S waves.

Answers

A seismogram shows that P waves travel faster than S waves. The answer is letter D. This is because P waves can push and pull the sound waves through a liquid or solid medium. The S wave can only move to the solid medium and solids have more compact molecules than the liquid so it travels slow.

A seismogram shows that P waves travel faster than S waves. The answer is letter D. This is because P waves can push and pull the sound waves through a liquid or solid medium. The S wave can only move to the solid medium and solids have more compact molecules than the liquid so it travels slow.

Explanation:

Because P waves are the fastest seismic waves, they will ordinarily be the original 1 that your seismograph records. The following set of seismic waves on your seismogram will be the S waves. These are normally higher than the P waves. Often they are the only waves filmed a long distance from medium-sized earthquakes.

Soil can best be described as the A. layer of bedrock four layers beneath the Earth's surface.
B. sandy bottom of the ocean's floor.
C. third layer beneath the Earth's surface.
D. loose covering of weathered rocks and decaying organic matter.

Answers

The correct option is D. Soil can best be described as the loose covering of weathered rocks and decaying organic matter. There are different types of soil, the type of soil formed depends majorly on the type of parent rock from which the soil is formed and the amount of organic matter present in the soil.

A 1.0 kg book is lifted 0.5 m above the table , but the table is 1.0 m above the floor , what would be the P.E of the book if the reference level where the floor ?

Answers

The height of the book from the ground = 1.0 m + 0.5 m = 1.5 m 

The mass of the book = 1 kg

We know that = 

P.E.=m*g*h

Taking 'g' as 9.8 m/s² and putting the values in the formula we get -

P.E.=1*9.8*1.5

P.E.=14.7 Joules

What is the resultant displacement of a dog looking for its bone in the yard, if the dog first heads 55° north of west for 10.0 m, and then turns and heads west for 5.00 m?

Answers

Answer:

c = 13.5 m

Explanation:

from the attached diagram, we can apply the cosine rule to get the resultant displacement (c) where

c = \sqrt{a^(2)+b^(2)-2.a.b.cosθ}

  • from the diagram β = 55 degrees because they are alternate angles

         θ + β = 180  (sum of angles on a straight line )

         θ + 55 = 180

         θ = 180 - 55

        θ = 125 degrees

  • c = \sqrt{a^(2)+b^(2)-2.a.b.cosθ}

            c = \sqrt{5^(2)+10^(2)-2.5.10.cos125}

           c =√(25+100-(-57.4))

           c = 13.5 m
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