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Maslowich
2 years ago
5

What are the answers

Mathematics
2 answers:
miss Akunina [59]2 years ago
7 0

Answer:

see below

Step-by-step explanation:

1) 18

2) 45

3) 75

4) 4

5) 7

6) 14

7) 3

8) 9

9) 135

10) 8

11) 60

12) 15

13) 72

14) 45

BartSMP [9]2 years ago
6 0
The top answers are answered correctly
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(1 point) A chain 64 meters long whose mass is 24 kilograms is hanging over the edge of a tall building and does not touch the g
miss Akunina [59]

Answer:

W = 2747,1 [J]

Step-by-step explanation:

Chain is 64 meters long with mass 24 Kg

Then weight of the chain is p = 24 * 9.8

p = 235.2 [N]         N = kg*m/s²

And by meter is 235,2 / 64    = 3.675

Total work has two component

- work to lift the 13 top meters of chain  W₁

W₁ = ∫₀ᵇ F(y) dy

- work to lift last ( 64 - 13 ) meters  51   W₂

W₂ = 3.675 * 51 * 13      Kg m² /s²   [J]

W₂ =  2436,53 [J]

We need to calculate  W₁

W₁  = ∫¹³₀ mgy dy    ⇒     W₁  = ∫¹³₀ 3,675 ydy

W₁  = 3,675* ∫¹³₀ ydy     W₁  = 3,675* y²/2  |₀¹³

W₁  = 3,675* 84,5 [J]

W₁  = 310,54 [J]

And total work W

W = W₁ + W₂

W = 310,54  + 2436,53 [J]

W = 2747,1 [J]

8 0
3 years ago
Which one is the answer ?
N76 [4]
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7 0
3 years ago
Are the statements true or false?
My name is Ann [436]

false false false false false

5 0
3 years ago
Unit price $12 for 150lb bag
makvit [3.9K]

Answer:

For $1 its 12.5lbs

Step-by-step explanation:

6 0
3 years ago
Prove that 7-4√7 is irrational​
mixas84 [53]

Answer:

hey ;

7 - 4 \sqrt{7}

is an irrational number

Step-by-step explanation:

here's the proof in attachment.

<em>i</em><em> </em><em>hope</em><em> </em><em>it</em><em> </em><em>helped</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em>

3 0
2 years ago
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