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
lutik1710 [3]
3 years ago
5

1) What is the difference in water pressure between the top and bottom of a 200-m deep well?

Mathematics
1 answer:
ELEN [110]3 years ago
6 0

Answer:

1,960 kPa

Step-by-step explanation:

The pressure difference between two places with different height can be calculated by using Bernoulli's principle. The principle can be used to find moving fluid, but since the water inside well is static we can remove the part with velocity. You also need to know the density of water, which is 1000 kg/m3. Assuming gravity unit is 9.8 m/s^{2}, the calculation will be:  

P1+ ρgh1 = P2 + ρgh2

P2 -  P1= ρgh2 -ρgh1

P2 - P1= (1000 kg/m3) * (9.8 m/s^{2},) * 200m - (1000 kg/m3) * (9.8m/s^{2},) * 0m

P2 - P1= 1,960,000 kg/ms^{2} = 1,960 kPa

200m deep well has 1,960 kPa higher pressure

 

You might be interested in
Which point is not on the graph of y =2x + 3?
Nostrana [21]

Answer:

i'm pretty sure its D

Step-by-step explanation:

if you make a graph yourself you'll see all the rel;relationship match except for d

3 0
3 years ago
What is the length of side PQ?<br> A. 48<br> B. 24<br> C. 40<br> D. 18
kicyunya [14]
6 × 2 = 12 so 6 is the dilation factor

thus 4 × 6 is PQ which is 24
4 0
3 years ago
Read 2 more answers
Help pls i need this luv you guys ,&lt;333
bagirrra123 [75]

Answer:

x ≈ 3.1 ft

Step-by-step explanation:

The segment from the centre to the chord is a perpendicular bisector, thus

The triangle is right with base = \frac{1}{2} x

Applying Pythagoras' identity to the right triangle, then

(\frac{1}{2} x )² + 1.4² = 2.1²

\frac{1}{4} x² + 1.96 = 4.41 ( subtract 1.96 from both sides )

\frac{1}{4} x² = 2.45 ( multiply both sides by 4 )

x² = 9.8 ( take the square root of both sides )

x = \sqrt{9.8} ≈ 3.1 ft ( to the nearest tenth )

7 0
3 years ago
A rabbit population doubles every 4 weeks.There are currently five rabbits in a restricted area. If t represents the time in wee
sertanlavr [38]
Doubling formula is this:

P(t)=P(2)^{\frac{t}{d}}
where P=initial number of rabbits
t=time
d=time it takes to doulbe

ok, so 4 weeks is the doubling time so that is 4*7=28 days

we wawnt time=98
and oroiginal number of rabbits is 5 so
P(98)=5(2)^{\frac{98}{28}}
P(98)=5(2)^{3.5}
P(98)=5(2^3)(\sqrt{2})
P(98)=5(8)\sqrt{2}
P(98)=40\sqrt{2}
so P(98)≈56.56
we can't have .56 rabbit so round down or up
about 56 or 57 rabbits in 98 days
8 0
3 years ago
Which graph represents the solution set of y = x2 + 4x + 3 and y = 2x + 6?
dybincka [34]
I hope this helps you x^2+4x+3=2x+6 x^2+2x-3 =0 x +3 x -1 (x+3)(x-1)=0 x+3=0 x= -3 x-1=0 x=1
3 0
3 years ago
Read 2 more answers
Other questions:
  • Jones like to watch the bird in her yard one morning she notices that there were twice as many robins as Blue Jays. if she count
    5·2 answers
  • How to subtract fractions
    10·1 answer
  • casey has a small business making dessert baskets. she estimates that her fixed weekly costs for rent, electricity, and salaries
    6·1 answer
  • Solve for x: −3(x − 2)2 + 17 = 0
    7·2 answers
  • NEED HELP PLEASE|!!!! ANSWER ASAP!!!!!!
    13·1 answer
  • There are 300 calories in three ounces of a certain ice cream. How many calories are there in two pounds?
    7·1 answer
  • When two 6-sided dice are rolled, there are 36 possible outcomes. Find the probability that the sum is 8
    11·1 answer
  • What is x/y ? Help pls
    5·1 answer
  • How many edges does a cube has?<br> A.10<br> B 12<br> C 14<br> D 16
    13·2 answers
  • WORTH 35 POINTS HELP MEEEEEEE PLEZ I NEED HELP
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!