All categories

3 years ago

Hazel recently read an article that claimed that radio waves can cause electron displacement. Based on

Physics

1 answer:

iren [92.7K]3 years ago

3 0

Answer:

Based on the passage, the article's claim is not true. Therefore, the answer is:

No, because radio waves have energies that are too low to fall in the ionizing range.

Explanation:

Radio waves are generally known as forms of non-ionizing radiation. This means that they do not have enough energy, unlike microwaves, to separate electrons from atoms or molecules, thereby ionizing them. They cannot cause electron displacement, as claimed in the article. Therefore, they cannot break chemical bonds, which can cause chemical reactions or DNA damage. As non-ionizing radiation, radio waves occur at lower frequencies in the electromagnetic spectrum.

You might be interested in

Example of optical object

Alik [6]

Answer:

Telescope,cameras

Hope it helped

5 0

3 years ago

Read 2 more answers

Identify and describe three specific mnemonic techniques you learned about and explain how each of these mnemonics devices may b

aev [14]

Take your time, do not get distracted , do not talk and focus on the exam

6 0

3 years ago

g If 6.35 moles of a monatomic ideal gas at a temperature of 320 K are expanded isothermally from a volume of 1.45 L to a volume

vitfil [10]

Answer:

(a) change in the internal energy of the gas is zero

(b) the work done by the gas is 16.93 kJ

Explanation:

Given;

number of moles of gas, n = 6.35 moles

temperature of the gas, T = 320 K

initial volume of the gas, V₁ = 1.45 L

final volume of the gas, V₂ = 3.95 L

Part (a)

For isothermal expansion, temperature is constant and internal energy will also be constant.

Therefore, change in the internal energy of the gas is zero since the gas expanded isothermally (constant temperature).

ΔU = Q - W

where;

ΔU is change in internal energy

Q is heat transferred to the system

W is the work done by the system

Thus, Q = W

ΔU = 0

Part (b)

the work done by the gas

$W = nRTln{[\frac{V_2}{V_1}]$

where;

R is gas constant = 8.314 J/mol.K

$W = (6.35)(8.314)(320)ln{[\frac{3.95}{1.45}]}\\\\W =16930.4\ J\\\\W = 16.93\ kJ$

Part (c)

the heat flow into or out of the gas

Q = ΔU + W

Q = 0 + 16.93 kJ

Q = 16.93 kJ

Since the heat flow is positive, then it is heat flow into the gas.

3 0

3 years ago

A trombone has a variable length. When a musician blows into the mouthpiece and causes air in the tube of the horn to vibrate, t

lana66690 [7]

Answer:

The frequency increases with a shorter horn (Option B).

Explanation:

The length of the horn determines the distance along which the wave travels; simply called the wavelength. Therefore, a short horn tube will produce a short wavelength and vice versa.

Sound waves have various characteristics that define pitches in musical instruments and these characteristics are interdependent on each other.

in this case, the frequency and the frequency and the wavelength are related.

The relationship between the wavelength and its frequency is given as:

c = f λ 

where 'c' is the speed of sound through the instrument; 'f ' is the frequency and 'λ' is the wavelength.

Let's assume that the speed at which the musician blows air into the mouthpiece remains constant, an increase in wavelength will cause a decrease in frequency. Conversely, as the tube of the horn becomes shorter the frequency increases.

6 0

3 years ago

How is Newtons First Law like Inertia?

stellarik [79]

Inertia- a property of matter by which it continues in its existing state of rest or uniform motion in a straight line, unless that state is changed by an external force.

6 0

4 years ago