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sdas [7]
1 year ago
14

guess my numbers. the first number is two more than the second number. when I add two times the first number to five times the s

econd I get 25.
Mathematics
1 answer:
V125BC [204]1 year ago
4 0

Solution

let the numbers be

First number = x +2

second number = x

2 X first number = 2(

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A force of 3 pounds is required to hold a spring stretched 0.6 feet beyond its natural length. how much work (in foot-pounds) is
ioda

The work done (in foot-pounds) in stretching the spring from its natural length to 0.7 feet beyond its natural length is 1.23 foot-pound

<h3>Data obtained from the question</h3>

From the question given above, the following data were obtained:

  • Force (F) = 3 pounds
  • Extension (e) = 0.6 feet
  • Work done (Wd) =?

<h3>How to determine the spring constant</h3>
  • Force (F) = 3 pounds
  • Extension (e) = 0.6 feet
  • Spring constant (K) =?

F = Ke

Divide both sides by e

K = F/ e

K = 3 / 0.6

K = 5 pound/foot

Thus, the spring constant of the spring is 5 pound/foot

<h3>How to determine the work done</h3>
  • Spring constant (K) = 5 pound/foot
  • Extention (e) = 0.7 feet
  • Work done (Wd) =?

Wd = ½Ke²

Wd = ½ × 5 × 0.7²

Wd = 2.5 × 0.49

Wd = 1.23 foot-pound

Therefore, the work done in stretching the spring 0.7 feet is 1.23 foot-pound

Learn more about spring constant:

brainly.com/question/9199238

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Suzette is eating jelly beans. At one point, she counts 5 blue, 5 red, 7
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Red has a greater value.
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6 0
3 years ago
2(f-9)=-28 f=?<br>-3(2t+3)=-21 t=?<br>​
SVETLANKA909090 [29]

Answer:

1. f= 3/5

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Step-by-step explanation:

FYI you can use the app photo math, you just take a pic of the problem and it gives you the answer and explains the steps and it is free.

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