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mote1985 [20]
3 years ago
12

If a person can't accompdate and the glasses is +2.50D. At which distance will the person see cleary

Physics
1 answer:
snow_tiger [21]3 years ago
5 0

I believe the correct answer is 40 cm.

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A very strong, but inept, shot putter puts the shot straight up vertically with an initial velocity of 11.0 m/s. how long does h
noname [10]
The shot putter should get out of the way before the ball returns to the launch position.

Assume that the launch height is the reference height of zero.
u = 11.0 m/s, upward launch velocity.
g = 9.8 m/s², acceleration due to gravity.

The time when the ball is at the reference position (of zero) is given by
ut - (1/2)gt² = 0
11t - 0.5*9.8t² = 0
t(11 - 4.9t) = 0
t = 0 or t = 4.9/11 =  0.45 s

t = 0 corresponds to when the ball is launched.
t = 0.45 corresponds to when the ball returns to the launch position.

Answer: 0.45 s
7 0
2 years ago
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3 years ago
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Why is detergent mixed in a toothpaste?
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