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4 years ago

1. Which areas of physics deal with the following?

Physics

2 answers:

Genrish500 [490]4 years ago

8 0

Answer:

1. how fast things move - mechanics

2. how the shape of a cave affects an echo - Sound & acoustics

3. which sunglasses are best for cutting the glare on a ski slope - optics

4. how the cooling system in a refrigerator works - thermodynamics

5. what lightning is - Electricity

6. how energy is produced by the sun – nuclear physics

Explanation:

Mechanics - the study of the motions of the objects

Sound - the study of the behavior of sound waves

Optics - the study of the behavior of light waves and optical instruments

Thermodynamics - the study of the relationship between heat and other forms of energy

Electricity - the study of properties of charges, their movement and their field interactions

Nuclear physics - study of atomic nucleus and its properties

lana66690 [7]4 years ago

5 0

ANSWER:

a. Kinematics.

b. Waves/Acoustics.

c. Optics/Polarization.

d. Thermal/Conservation of Energy.

e. Electricity and magnetism.

f. Renewable energy

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Use these relationships to determine the number of calories to change 1.5 kg of 0∘c ice water to 1.5 kg of 100∘c boiling water.

aivan3 [116]

The latent heat of fusion of water is 80 cal/g.
The specific heat of water is 1 cal/g-C.
The latent heat of vaporization of water is 540 cal/g.
Therefore, if we have 1.5 kg = 1500 g, the total heat requirement is:
1500 g[(80 cal/g) + (1 cal/g-C)(100 - 0)C + (540 cal/g)] = 1500 g(720 cal/g) = 1,080,000 cal.

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3 years ago

How does an oxygen concentrator machine work?

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4 years ago

The graph below represents the motion of four cars, labeled W, X, Y, and Z.

ycow [4]

Answer:

Answer is A

Explanation:

As we know , for constant velocity we get a straight line.

The formula for this problem is s = vt which is similar to a straight line formula like y = mx + c.

If we put here c = 0 we get the formula for distance and velocity.

So the answer is A.

6 0

3 years ago

The intensity of electromagnetic radiation from the sun reaching the earth's upper atmosphere is 1.37kW/m2kW/m2. Part A Assuming

Juli2301 [7.4K]

Answer:

#_photon = 7 10²¹ photons

Explanation:

Let's look for the power that affects the panel of area of 1.5 m2

I = P / A

P = I A

P = 1.37 10³ 1.5

P = 2,055 10³ W

P = E / t

If we use t = 1 s

E = P t

E = 2,055 10³ J

This is the power that the panel receives, let's look for the energy of a photon

E = h f

c = λ f

f = c /λ

E = h c /λ

Let's calculate

E₀ = 6.63 10⁻³⁴ 3 10⁸/680 10⁻⁹

E₀ = 2.925 10⁻¹⁹ J

In one second the total energy is the number of photons for the energy of each one

E = #_photon E₀

#_photon = E / E₀

#_photon = 2,055 10³ / 2,925 10⁻¹⁹

#_photon = 7 10²¹ photons

8 0

3 years ago

50pts: Fill this out.

Bogdan [553]

Push is in, pull is out

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Contact Forces

Frictional Force

Tension Force

Normal Force

Air Resistance Force

Applied Force

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Action-at-a-Distance Forces

Gravitational Force

Electrical Force

Magnetic forces

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Very bottom, last part

First drawing: Arrow down above box

Second drawing: Arrow up from below box

4 0

3 years ago

Read 2 more answers