Plasma is found in which of the following substances?

Select ALL answers that apply to the total energy of a wave:

Verdich [7]

Answer:

(A) The shorter the wavelength, the more total energy the wave contains.

(B) The longer the wavelength, the less total energy the wave contains.

Explanation:

The wavelength (λ), frequency (f) and energy (E) are interrelated. This relationship between them is represented in the following equations:

λ = v/f and E = hf

Where;

λ = wavelength (m)

f = frequency (Hz)

E = energy (Joules)

v and h represents speed of light and Planck's constants respectively.

Combining both equations, E = hc/λ

This equation shows that ENERGY (E) is directly proportional to the frequency (f) but inversely proportional to the wavelength (λ). This means that "the shorter the wavelength, the more total energy a wave contains" and vice versa.

However, the higher the frequency, the more the total energy the wave contains and vice versa.

8 0

3 years ago

Regulations on air pollutants in the United States and other countries since the 1970s have greatly reduced the amount of CO2 em

Lynna [10]

True.

Because some people breathe less pollution and face lower risks of premature death and other serious health

7 0

3 years ago

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10. There are two bears that both have the same proteins for ear shape in their cells. The bears have

valentinak56 [21]

Answer:

They will have the same ear shape since their proteins connect in the same ways to determine ear shape.

Explanation:

I majored in Chemistry

4 0

3 years ago

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Calculate the energy that is required to change 50.0 g ice at -30.0°C to a liquid at 73.0°C. The heat of fusion = 333 J/g, the h

OverLord2011 [107]

Answer:

There is 3.5*10^4 J of energy needed.

Explanation:

Step 1: Data given

Mass of ice at -30.0 °C = 50.0 grams

Final temperature = 73.0 °C

The heat of fusion = 333 J/g

the heat of vaporization = 2256 J/g

the specific heat capacity of ice = 2.06 J/gK

the specific heat capacity of liquid water = 4.184 J/gK

Step 2: Calculate the heat absorbed by ice

q = m*c*(T2-T1)

⇒ m = the mass of ice = 50.0 grams

⇒ c = the heat capacity of ice = 2.06 J/gK = 2.06 J/g°C

⇒ T2 = the fina ltemperature of ice = 0°C

⇒ T1 = the initial temperature of ice = -30.0°C

q = 50.0 * 2.06 J/g°C * 30 °C

q = 3090 J

Step 3: Calculate heat required to melt the ice at 0°C:

q = m*(heat of fusion)

q = 50.0* 333J/g

q = 16650 J

Step 4: Calculate the heat required to raise the temperature of water from 0°C to 73.0°C

q = m*c*(T2-T1)

⇒ mass = 50.0 grams

⇒ c = the specific heat of water = 4.184 J/g°C

⇒ ΔT = T2-T1 = 73.0 - 0 = 73 °C

q = 50.0 * 4.184 * 73.0 = 15271.6 J

Step 5: Calculate the total energy

qtotal = 3090 + 16650 + 15271.6 = 35011.6 J = 3.5 * 10^4 J

There is 3.5*10^4 J of energy needed.

8 0

3 years ago

When a pot of water sits on a hot stove, the metal pot is heated, and then transfers its heat to the water. A student claims tha

finlep [7]

When a pot of water sits on a hot stove, the metal pot is heated, and then transfers its heat to the water. A student claims that conduction is the only type of heat transfer occurring. The statement that explains why the student’s idea is incorrect Conduction cannot occur between two different phases of matter. The answer is letter A.

3 0

3 years ago

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