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Stella [2.4K]
2 years ago
3

The teacher told Fatima that all types of energy are kinetic energy, potential energy, or both. Fatima drew this diagram to help

her organize this
information. She then sorted each type of energy into its correct category: chemical, electrical, electromagnetic, mechanical, nuclear, and
thermal

categories:
(Both)
(Potential
energy)
(Kinetic
energy)

Which type of energy belongs only in the Kinetic Energy category?
A. chemical
B. electromagnetic
C. mechanical
D. thermal
Physics
2 answers:
torisob [31]2 years ago
4 0
It’s D. Thermal , because kinetic energy belongs to thermodynamics.
Mumz [18]2 years ago
4 0

Answer:

Although, your question is incomplete because the diagram you talked about cannot be found. But, the question can be answered without the diagram.

The correct answer is option (D) Thermal

Explanation:

We have majorly two types of energy which are kinetic and potential energy. But, some forms of energy can fall under the both.

Kinetic energy is the energy in motion. while potential energy is the energy at rest.

The classification is given as:

Potential Energy:  Nuclear energy, Chemical energy, Gravitational energy, Elastic energy etc.

Kinetic Energy: Thermal energy, Mechanical energy, Sound energy, Electrical energy etc.

Both Potential and Kinetic: electromagnetic

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Answer:

Height = 53.361 m

Explanation:

There are two balloons being thrown down, one with initial speed (u1) = 0 and the other with initial speed (u2) = 43.12

From the given information we make the following summary

u_{1} = 0m/s

t_{1} = t

u_{2} = 43.12m/s

t_{2} = (t-2.2)s

The distance by the first balloon is

D = u_{1} t_{1}  + \frac{1}{2} at_{1}^2

where

a = 9.8m/s2

Inputting the values

D = (0)t + \frac{1}{2} (9.8)t^2\\ D = 4.9t^2

The distance traveled by the second balloon

D = u_{2} t_{2}  + \frac{1}{2} at_{2}^2

Inputting the values

D = (43.12)(t-2.2)  + \frac{1}{2} (9.8)(t-2.2)^2

simplifying

D = 4.9t^2 + 21.56t -71.148

Substituting D of the first balloon into the D of the second balloon and solving

4.9t^2 = 4.9t^2 + 21.56t -71.148 \\ 21.56t = 71.148\\ t = 3.3s

Now we know the value of t. We input this into the equation of the first balloon the to get height of the apartment

D = 4.9(3.3)^2\\ D = 53.361 m

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Umar has two copper pans, each containing 500cm3 of water. Pan A has a mass of 750g and pan B has a mass of 1.5kg. Which pan wil
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Answer:

heat required in pan B is more than pan A

Explanation:

Heat required to raise the temperature of the substance is given by the formula

Q = ms\Delta T

now we know that both pan contains same volume of water while the mass of pan is different

So here heat required to raise the temperature of water in Pan A is given as

Q_1 = (m_w s_w + m_ps_p)\delta T

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Now similarly for other pan we have

Q_2 = (m_w s_w + m_ps_p)\delta T

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Answer:

<em>A) Beam B carries twice as many photons per second as beam A.</em>

Explanation:

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We also know that the amount of photon present in an electromagnetic beam is proportional to the energy of the beam, hence the amount of beam per second is proportional to the power.

With these two facts, we can say that the intensity is a measure of the amount of photon per second in an electromagnetic beam. So we can say that <em>beam B carries twice as more power than beam A, or Beam B carries twice as many photons per second as beam A.</em>

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