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s2008m [1.1K]
4 years ago
8

A pitcher throws a ball at 40 m/s. how much time does the ball take to reach the batter 18 m away

Physics
2 answers:
dlinn [17]4 years ago
5 0
V= d/t---> t=d/v= 18/40 which is .45 secs
Maurinko [17]4 years ago
4 0
18/40=.45
so, .45 of a second
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qwelly [4]

Answer:

Its b)

Explanation:

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A Ferris wheel has radius 5.0 m and makes one revolution every 8.0 s with uniform rotation. A person who normally weighs 670 N i
DaniilM [7]

Answer:

The apparent weight of the person as she pass the highest point is  N  =  458.8 \ N

Explanation:

From the question we are told that

   The radius of the Ferris wheel is r = 5.0 \ m

    The period of revolution is T = 8.0 \ s

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Generally the speed of the wheel is mathematically represented as

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substituting values

      v =  \frac{2 * 3.142 *  5}{8 }

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          N  =  mg  - \frac{mv^2}{r}

Where m is the mass of the person which is mathematically evaluated as

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substituting values

    m =  \frac{670}{9.8}

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So

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What causes interstellar dust and clouds into plants and stars
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The current through a heater is 12 A when it is plugged into a
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Answer:

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Explanation:

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3 years ago
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