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mart [117]
2 years ago
13

5. In the image below, the focus lines are shown. What can be done to bring the apple into focus?

Physics
1 answer:
Vitek1552 [10]2 years ago
3 0

In the image below, the focus lines are shown. The step can be done to bring the apple into focus is make the lens rounder. The correct option is A.

<h3>What is lens?</h3>

The lens is in spherical shape may be diverging or converging.

As light enters the eye, it is focused on the retina. Changing the pupil diameter, regulates the amount of light entering the eye. Changing lens shape will focus the light.

The changes in lens shape needed to maintain focus as the object distance changes.

Thus, the correct option is A.

Learn more about lens.

brainly.com/question/17014859

#SPJ1

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A) State the meaning of the term principal focus as applied in lenses.​
Mariana [72]

Answer:

Explanation:

Basically, the point on the axis of a lens or mirror to which parallel rays of light converge or from which they appear to diverge after refraction or reflection.

Not sure if this is what your looking for. Hope this helps!

4 0
2 years ago
Two point charges exert a 5.50 N force on each other. What will the force become if the distance between them is increased by a
vodomira [7]

Answer:

0.055 N

Explanation:

From coulomb's law,

F α 1/r²

F = k/r²

F₁r₁² = F₂r₂²......................... Equation 1

Where F₁ = Initial force, r₁ = initial distance, F₂ = Final force, r₂ = Final distance.

making F₂ the subject of the equation

F₂ = F₁r₁²/r₂²..................... Equation 2

Given: F₁ = 5.50 N.

Let: r₁ = x m, then r₂= 10x m

Substitute into equation 2

F₂ = 5.5(x²)/(10x)²

F₂ = 5.5x²/100x²

F₂ = 5.5/100

F₂ = 0.055 N.

Hence the force becomes 0.055 N

8 0
3 years ago
A rock at rest has weight 138 n. what is the weight of the rock when it is accelerating downward at 3.5 m/s2?
tamaranim1 [39]
<span>The weight of the rock is 138n when accelerating downward at 3.5m/ s2.Weight is a measurement of the force of gravity on an objects mass. Therefore as long as the force of gravity is the same and the mass of the rock is the same the weight should also be the same.</span>
7 0
3 years ago
Choose the statements that are true about bond strength.
vodka [1.7K]
I believe that the answer is a.
7 0
3 years ago
Read 2 more answers
A 48.0-kg skater is standing at rest in front of a wall. By pushing against the wall she propels herself backward with a velocit
Kipish [7]

Answer:

F = 47.6 N

Explanation:

  • Newton's 2nd law can be expressed as the rate of change of the total momentum, respect of time, as follows:

       F = \frac{\Delta p}{\Delta t}

  • So, in order to find the average force exerted by the skater on the wall, we can find the change in momentum due to the force exerted by the wall (which is equal and opposite to the one exerted by the skater), and  divide it by the time interval , as follows:

       F_{wall} = \frac{\Delta p}{\Delta t} =\frac{(48.0 kg*(-1.06m/s)}{1.07s} = -47.6 N

       ⇒ Fsk = 47.6 N (normal to the wall)

3 0
4 years ago
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