A good baseball pitcher can throw a baseball toward home plate at 86 mi/h with a spin of 1530 rev/min. How many revolutions does the baseball make on its way to home plate

12.1 rev

Explanation:

The question seems incomplete. So for simplicity , we assume that the 60 ft trajectory is a straight line.

First, find the time it takes to get the baseball to homeplate:

t = S / V,

where S is the distance traveled

V is the velocity.

t = 60 ft / 85 mi/h

But 1 Mile = 5280 Feet

Therefore

t= 60 / (86 * 5280) =0.0001321 hours

Coverted to minutes

t=hours×60min

= 0.007928 min.

Second, to calculate the number of revolutions made:

N = t × n

t is the time in minutes

n is the number of spin/min

= 0.007928 × 1530

= 12.1300 = approx. 12.1 revolutions.

12.1 revolutions.

1.) question:

how was the agricultural revolution related to the industrial revolution?

d.) improved agriculture led to population growth, which increased demand for goods.

2.) question:

which of the following happened first in the events leading to american independence?

c.) the meeting of the first continental congress.

3.) question:

what was one advantage that cities offered businesses and industrialists?

answer:

d.) transportation networks

4.) question:

what economic philosophy developed in response to the problems of industrial workers?

a.) socialism

5.) question:

how does this image relate to the jacobins?

b.) the jacobins used this machine to scare and execute those who supported the king.

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