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
VashaNatasha [74]
3 years ago
11

At Hoover Dam, the distance the water effectively falls before encountering the electric generators depends on the water levels

in Lake Mead. Assume that the water intakes are effectively 175 m above the electric generators. How much water must pass through the generators to power 2 million 35-W Las Vegas lightbulbs for 6.0 minutes? (HINT: This is a conservation of energy problem. All the energy comes from the falling water. Consider the electric generators to be 100% efficient.) Give your answer in kilograms, and enter your answer in the format *.**E**. kg To imagine how much water this is, recall that 1.0 kg of water occupies a volume of 1.0 liter.
Physics
1 answer:
pashok25 [27]3 years ago
3 0

Answer:

Explanation:

recall that power is energy carried out or work done per time

P=W/t

P=2*10^6*35

t=6*60=420S

W=Energy

E=2*10^6*35*360S

E=25200000000

Energy stored by water from rest is called potential energy. Since the water is falling from a height , we calculate potential energy as thus

E=M*g*h

Assume that the water intakes are effectively 175 m above the electric generators. How much water must pass through the generators to power 2 million 35-W Las Vegas light bulbs for 6.0 minutes?

M=mass of water

g=acceleration due to gravity 9.81m/s^2

h=height ,175m

25200000000=M*9.81*175

M=\frac{25200000000}{175*9.81}

M=1716.75kg

You might be interested in
Which of the following is quantitative data? a. Color c. Shape b. Odor d. Volume
Papessa [141]
Hello there! Quantitive data has to do with measurements that can be shown with numbers. Examples of this are things like your height and the length of your arms. With that alone, A and B are eliminated, because those answer choices make no sense. They can't be expressed by numbers and you can't measure colors or odors mathematically. Volume is a way to measure something that CAN be written down by numbers. D is the only answer choice that fits the definition of quantitive data. The answer is D: volume.
6 0
3 years ago
A geothermal plant has been built in a location. Which of these is the most likely benefit of the geothermal plant in this locat
kramer

Answer:

C

Explanation:

A and B are not true and D is a disadvantage

4 0
3 years ago
A _______ property of gasoline is that it will _______ in air.
Misha Larkins [42]
A chemical property of gasoline is that it will burn in air. Gasoline is a substance that is used to power automobiles. Gasoline will oxidize in air which means that it reacts with oxygen in air. Hope this answers the question. Have a nice day.
8 0
3 years ago
Read 2 more answers
Which statement correctly describes the gravitational potential energy of the pendulum based on this diagram?
MrRa [10]
I think it's 'C' but I won't know for sure until you let me see the diagram.
8 0
3 years ago
What happens to gas that is not used
kvv77 [185]
the engine won't start or it sputters when it should be running perfectly. if the gasoline is old and stale, it will have lost a portion of its volatility. the lighter components of the gasoline (remember, gasoline is a mixture of different hydrocarbons) have probably evaporated off or disappeared.
3 0
2 years ago
Other questions:
  • The average kinetic energy of particles in an object is also known as _________.
    8·1 answer
  • PLEASE HELP, 20 POINTS, PHYSICS PROBLEM, WILL MARK BRAINLIEST: ​
    14·1 answer
  • The speed at which the package hits the ground is really fast! If a package hits the ground at such a speed, it can be crushed a
    7·1 answer
  • When you ride a bicycle, in what direction is the angular velocity of the wheels? When you ride a bicycle, in what direction is
    14·1 answer
  • What can you use to determine whether the SATA port no which you are connecting the drive will also run at 6.0Gbps?
    5·1 answer
  • The source of the centripetal force that arises when a runner rounds a curve on a track is _____.
    11·2 answers
  • A plane flies toward a stationary siren at 1/4 the speed of sound. Then the plane stands still on the ground and the siren is dr
    5·1 answer
  • Why do power plants worry about the resistance of the wires?<br><br><br> ( PHYSICAL SCIENCE )
    9·1 answer
  • Convert 9.83 m/s with a radius of 0.85 m to rotations per minute (rpm)
    10·1 answer
  • ______ is a simple movement in which two opposing surfaces slide slightly back-and-forth or side-to-side with respect to one ano
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!