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Romashka-Z-Leto [24]
3 years ago
15

My teacher didnt explain this well and im lost

Physics
1 answer:
Vedmedyk [2.9K]3 years ago
4 0

Explanation:

(a) The given figure is a convex lens.

(b) In this figure, the object is placed between F and optical center of a lens. Convex lens is a converging lens. It converges the beam of light falling on it after reflection. The image is formed on the same side of the lens as the object.

The formed image is enlarged and it is virtual and erect.

(i) Type : virtual

(ii) Orientation : upright

(iii) Size : Enlarged

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Which of the following is a TRUE statement?
pshichka [43]

Answer:

e. All of these statements are false.

Explanation:

As we know that heat transfer take place from high temperature to low temperature.

It is possible to convert all work into heat but it is not possible to convert all heat in to work some heat will be reject to the surrounding.

The first law of thermodynamics is the energy conservation law.

Second law of thermodynamics  states that it is impossible to construct a device which convert all energy into work without rejecting the heat to the surrounding.

By using heat pump ,heat can transfer from cooler body to the hotter body.

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5 0
3 years ago
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Ivanshal [37]

Answer:

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6 0
3 years ago
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The solution you should use is Hooke's law: F=-kx

It should have the same signs because they repel due to the stretch of the spring. 

a. Since there is a constant energy within the spring, then Hooke's law will determine the possible algebraic signs. The solution should be 
<span>F = kx 
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b. Then use Coulomb's law; F=kq1q2/r^2 to find the charges produced in the force. 



8 0
3 years ago
A student does 686 J of work on an object in 3.1 seconds. What is the power output of the student?
Alenkinab [10]

Answer:

221.29 Watts

Explanation:

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5 0
2 years ago
Why can water dissolve some ionic compounds, like NH4Cl, as well as some nonionic compounds, like methanol?
nirvana33 [79]
I think that’s the answer u r looking for
4 0
3 years ago
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