1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Cloud [144]
3 years ago
10

Help me on question 14 please

Mathematics
1 answer:
Brums [2.3K]3 years ago
7 0
What is question 14?
You might be interested in
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
Si al cuadrado de un numero se le suma 11 se obtiene como resultado 92 ¿QUE NÚMERO ES?
Ivan

Answer: Nueve

Step-by-step explanation: Si cuadras el número nueve obtendrás ochenta y uno. Agregue once a eso y obtendrá noventa y uno.

¿Brainliest por favor?

7 0
3 years ago
Negative seven times a number is negative two hundred forty five. what is the number?
Anettt [7]

Answer:

35

Step-by-step explanation:

since i couldn't answer before

7 0
2 years ago
Sammi has 2 1/3 feet of rope. If he cuts the rope into pieces that are each 1/2 foot long, there will be 1/3 foot of rope left o
Stells [14]

Answer:

Step-by-step explanation:

Sammi has 2 1/3 feet of rope.

To write this type of fraction = 2 + 1/3 - The integer 2 in the expression is the amount of feet of rope that was cut.

Thus to know the number of 1/2 foot pieces produced, let this number be x. Thus, we have 1/2 of x pieces = 2

  x/2 = 2; x = 2x2 = 4.

Thus, Sanmi has 4 pieces of 1/2 foot long piece each of rope.

4 0
3 years ago
Give each rate in miles per hour. Round to the nearest tenth.
bonufazy [111]
The answer is 5.5 mph
8 0
3 years ago
Other questions:
  • Wich pair of equations below represents perpendicular lines? <br><br> Please!!!
    7·2 answers
  • Ina a class of 30 children,60% can swim. how many children cannot swim?
    7·1 answer
  • What are the solutions of –7x – 60 = x2 + 10x?
    13·2 answers
  • An online photo service charges 20 to make a photo book with 16 pages . Each extra page costs 1.75 . The cost to ship the comple
    5·1 answer
  • Leah is six years older than her sister Sue John is five years older than Leah the sum of their ages is 41 how old is Sue
    6·2 answers
  • The president of a company creates a graph of the price of the company’s stock over one year. He describes the graph as follows:
    7·2 answers
  • What value of wmakes the equation below true?<br> 3w + 2 = 8 + 6W
    9·1 answer
  • A number five times is twenty five.
    11·2 answers
  • 3x - 5 = 1 what is the value of x​
    11·2 answers
  • I can’t figure this out
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!