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horrorfan [7]
3 years ago
14

Someone please help thank youu

Mathematics
1 answer:
IgorC [24]3 years ago
4 0

Answer:

If it had more time as a fossil then it is the oldest

Step-by-step explanation:

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An aquarium 2 m long, 1 m wide, and 1 m deep is full of water. Find the work (in J) needed to pump half of the water out of the
Nitella [24]

Answer:

W=2452.5 J

Step-by-step explanation:

The work is define as the integral of the force times distance. So we have:

W=\int^{a}_{b}Fxdx

Now, we can write the force in terms of density.

F=m*g=\rho Vg

V is the volume (V=2*1*1=2 m³)

So the work will be:

W=\int^{0.5}_{0} 2*1000*9.81*xdx=\int^{0.5}_{0} 2*1000*9.81*xdx=\int^{0.5}_{0}19620xdx=19620(\frac{x^{2}}{2})|^{0.5}_{0}

The limit of integration is between 0 and 0.5 because we want to pump half of the water out of the aquarium.

W=19620(\frac{x^{2}}{2})|^{0.5}_{0}=19620(\frac{0.5^{2}}{2})

W=2452.5 J

I hope it helps you!

8 0
3 years ago
5. Mr. Williams had 36 guests at his house for a party. Each guest brought
saul85 [17]

Answer:23

Step-by-step explanation:

4 0
3 years ago
Priya’s family exchanged 250 dollars for 4,250 pesos. Priya bought a sweater for 510 pesos. How many dollars did the sweater cos
I am Lyosha [343]

Answer:

$30

Step-by-step explanation:

Dollars : Pesos

250 : 4250

X : 510

250/4250 = X/510

X = 30

5 0
2 years ago
Read 2 more answers
Which situation represented by 25/9 ?​
faltersainse [42]

Answer:

the answer is 2.7777

Step-by-step explanation:

You just divide!

8 0
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Find the value of (6+4/2)/(4/6-1)
steposvetlana [31]
(10/2)/(-2/6)

5/(-2/6)

-24
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3 years ago
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