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Lady_Fox [76]
3 years ago
12

A baseball pitcher throws a baseball with a speed of 42 m/s . In throwing the baseball, the pitcher accelerates it through a dis

placement of about 3.5 m, from behind the body to the point where it is released.
Physics
1 answer:
andrew-mc [135]3 years ago
8 0

Answer:

a = 252 m / s²

Explanation:

The initial speed Vο = 0

The speed of baseball with witch it is thrown  Vf = 42 m/s

Displacement covered = 3.5 m

Hence acceleration will be constant at this moment, so as per the equation of constant acceleration : ( Vf² - Vο² ) / 2d = a

                                                            a = 252 m / s²

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Light with wavelength in air ( lambdaair ) is incident on a oil slick ( noil = 1. 25) floating on the ocean ( nwater = 1. 33). w
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4 0
1 year ago
Which of the following is/are true? Electromagnetic waves are created by accelerating charges. Electromagnetic waves are transve
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Answer:

All of the above are true.

Explanation:

(a). true  

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(b). true

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(c) true .

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4 0
3 years ago
Estimate the monthly cost of using a 700 W refrigerator that runs for 10 hours a day if the cost per kilowatt hours is cents $.2
Mrac [35]

Answer:

$4.2

Explanation:

Given data

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time= 10 hours

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=24*30

=720 hours

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21kwh= x

cross multiply

x=21*0.2

x= $4.2

4 0
2 years ago
The two cyclists travel at the same speed on level ground. They approach a low hill and decide to coast up instead of hard pedal
Sergeeva-Olga [200]

Answer:

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Explanation:

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3 0
3 years ago
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