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dangina [55]
2 years ago
13

A water mill grinds corn to make cornmeal. The water wheel has a radius of 18 feet. The wheel is rotating at 8 revolutions per m

inute. Find the linear speed, in feet per minute, of the water.​
Mathematics
1 answer:
Genrish500 [490]2 years ago
6 0

Answer:

904.9 feet per minute

Step-by-step explanation:

The Angular distance can be calculated using below expression

S= r θ ..............eqn(1)

Where

θ = angular distance travelled

r= Radius= radius of 18 feet

But angular distance can also be expressed as

θ = wt...................eqn(2)

w= angular speed= 8 rev per minute= (8 × 2π)

t= time

Velocity can also be expressed as

V= s/t............eqn(3)

Where

V= velocity

s= distance

t= time

Substitute eqn(2) into eqn(3)

V=( r θ)/ t................eqn(4)

Substitute eqn(2) into eqn(4)

V=( r w t)/ t

V= r w ..............eqn(5)

V= 18×(8 ×2π)

=288π

= 904.9 feet per minute

Hence, the linear speed, in feet per minute, of the water. is 904.9 feet per minute

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Jason is decorating his house and decides to paint one of the bedrooms blue. One tin of 500mL blue paint costs $11.50. To finish
adell [148]
1.You have that:
<span> 
 - One tin of 500 mL blue paint costs $11.50.
 -Jason needs </span><span>4 L of blue paint.
 
 2. First, you must convert 4 L to mL, as below:
 
 1 L----1000 mL
 4 L----x
 
 x=4x1000/1
 x=4000 mL
 
 3. If 500 mL costs $11.50, h</span><span>ow much will it cost 4000 mL?
</span><span> 
 500 mL-----$11.50
 4000 mL---x
 
 x=(4000 mL)($11.50)/500 mL
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</span><span> 
 How much will it cost Jason to paint this bedroom?
 
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8 0
2 years ago
Write and solve a quadratic equation for the situation below. Choose the answer that has both an equation that correctly models
Andreas93 [3]
Acceleration is:

a=g

Velocity is the integral of the above

v=gt+v0

And position is the integral of the above

h=gt^2/2+v0t+h0

You are given that v0=15ft/s and h0=0ft and let g≈-32 so

h(t)=-16t^2+15t

It will hit the ground when h(t)=0 so:

0=-16t^2+15t which is equal to

16t^2-15t=0  factor

t(16t-15)=0, since we are looking for the time other than zero...

t=15/16 of a second :)

So they obviously just rounded to one whole second.  So C.) was the correct answer.  (Although I would say they are all wrong because they didn't SAY to round the answer :P)   Haha, not trying to confuse you, the answer is most likely C. because they had the correct equation.
7 0
2 years ago
You and your neighbor attempt to use your cordless phones at the same time. Your phones independently select one of ten channels
ExtremeBDS [4]

Answer:

1/100.

Step-by-step explanation:

So, we can make the following deductions from the information given in the question or problem above.

[1]. "You and your neighbor attempt to use your cordless phones at the same time."

DEDUCTION: Two people are involved, that is you and your neighbor are both involved.

[2]. "Your phones independently select one of ten channels at random to connect to the base unit. "

DEDUCTION: Both cordless phones can choose one channels each which is random. The number of channels available is ten.

Therefore, the probability that both your phone and your neighbor phone pick the same channel can be calculated or determined as follows:

The probability that both your phone and your neighbor phone pick the same channel = probability that both your phone will pick one channel out of the ten channels ×  the probability that your neighbor phone pick one channel out of the ten channels.

The probability that both your phone and your neighbor phone pick the same channel = 1/10 × 1/10 = 1/100.

Therefore, The probability that both your phone and your neighbor phone pick the same channel = 1/100.

8 0
2 years ago
a jogger runs 218 meters eastward then 72 meters westard then 62 meters eastward and finally 184 meters westward. For this motio
iris [78.8K]

Answer:

<u>Total distance = 536 m</u>

<u>Total displacement = 24 m</u>

Step-by-step explanation:

<u>Distance and Displacement</u>

A moving object constantly travels for some distance at defined periods of time. The total moved distance is the sum of each individual distance the object traveled. It can be written as:

dtotal=d1+d2+d3+...+dn

This sum is obtained independently of the direction the object moves.

The displacement only takes into consideration the initial and final points of the path defined by the object in its moving. The displacement, unlike distance, is a vectorial magnitude and can be even zero if the object starts and ends the movement at the same point.

For the question at hand, it's not known if the requirement is about the distance or the displacement, so we will compute both.

To compute the distance, we just add all the distances:

dtotal= 218 m + 72 m + 62 m + 184 m = 536 m

To compute the displacement, we must establish a positive direction as desired. Let's choose the east as the positive direction. Any movement eastward is considered positive and any movement westward is negative. We mentioned the displacement is a vector, but since we only have movement in the x-axis, we can only manage the signs. Thus, the total displacement is:

xtotal = 218 m - 72 m + 62 m -- 184 m = 24 m

Since the result is positive, the jogger stopped 24 meters eastward form the original point.

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Kay [80]

Answer:

Igloo Ice has the lowest delivery charge.

Step-by-step explanation:

Igloo Ice when you plug in 120 for the y you get 25.714 as the x.

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And lastly Tasty treats at 120 is 24, so Igloo Ice has the lowest delivery charge per person (you pay $120 for 25.714 people.)

5 0
2 years ago
Read 2 more answers
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