Answer:
kinetic energy is 1/2mv^2.
which is 1/2×5×10^2.
1/2×5×100=
250J.
Two lenses that should be purchased are lenses with the power of 1d and 4d or 2d and 3d.
We need to know about the power of the lens to solve this problem. Lens power can be defined as the ability of the optical device to see. It can be represented by a dioptre unit. The relaxed power formula is
P = 1 / f
where P is the power of the lens in dioptre, and f is the focal length.
From the question above, the given parameter is
f = 0.2 m
By substituting the given parameters, we can calculate the power of the lens
P = 1 / f
P = 1 / 0.2
P = 5d
The total diopter should be 5d.
For more on lens at: brainly.com/question/15445779
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That’s the acceleration law! This would be a good example of inertia! When in a car, if the brakes are pressed immediately, the passengers will launch forward since their bodies are still in motion!
Your blood runs through your blood stream, every vein in your body. without that heartbeat the blood would not make it to the required places it needs to run to and you will lose oxygen and parts of your body and organs will shut down.
