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tino4ka555 [31]
3 years ago
13

Question 3 (Essay Worth 5 points)

Physics
1 answer:
Elis [28]3 years ago
8 0
Well, in order to figure out the answer is to divide until you figure out how many miles they went per second. If it takes 5 seconds to reach 50 miles per hour it took 10 seconds per every 10 miles meaning each mile took 1 second. (Not actually possible but the answer) So, If it finished a 100 mile trip in 2 hours it took an hour for 50 miles. If it took 1 hour for 50 miles divide 60/50 which gets you 1.2 so it took 1.2 miles per minute meaning the car went 120 miles per hour I believe. I hope this helps :)
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The near point of an eye is 48.5 cm. A corrective lens is to be used to allow this eye to focus clearly on objects at the distan
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Answer:

The focal length of the lens should be -51.5 cm (a concave lens).

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\dfrac{1}{f} = \dfrac{1}{u} + \dfrac{1}{v}

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\dfrac{1}{f} = \dfrac{1}{48.5} + \dfrac{1}{-25.0} = -\dfrac{23.5}{1212.5}

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