7. If 8 million kg of water flows over Niagara Falls each second, calculate the power available at the bottom of the falls.

Answers

Answer 1

Answer:

The power will be "3.92×10⁹ Watts". A further explanation is given below.

Explanation:

The given values as per the question,

Rate,

= 8 million kg

Distance,

= 50 m

Gravity,

= 9.8 m/s²

As we know,

The power will be:

⇒ [tex]Power = Rate\times Distance\times Gravity[/tex]

On putting the values, we get

⇒             [tex]= 8\times 10^6\times 50\times 9.8[/tex]

⇒             [tex]=3.92\times 10^9 \ Watts[/tex]


Related Questions

If a rock is thrown into a still pond creating ripples in the water, does this situation represent a transfer of kinetic energy?

Answers

I think it’s kinetic energy but I’m not sure hope this helps!

B. A car is moving 4.0 m/s to the right. The car begins to accelerate at a rate of 1.5 m/s/s, to the right. After
10 seconds, what will be the velocity of the car? For credit, show work in detail

Answers

There you go, hope that helps.

What is the SPEED of a ball that travels 120 m in 6s?

Answers

Answer:

20m/second

Explanation:

The reason the answer is 20m/second is because to find the speed of the ball  in this question you have to divide the distance over the time giving you the result of 20m/second

100 points to whoever can help, please
A 52-kg snow skier is at the top of a 245-m-high hill. After she has gone down a vertical distance of 112 m, what is her total energy?

a. 125 kJ
b. 1430 kJ
Selected: c. 570 kJThis answer is incorrect.
d. 13 kJ

Answers

Answer:

A) 1.2x10^5 J

Explanation:

What is the value of x in the equation 8+ 4 = 2 (x-1)

Answers

Answer:

mgi

Explanation:

Answer: x = 7

Explanation: 12 = 14 -2 = 12.

A baseball is thrown at an angle of 22◦ relative to the ground at a speed of 24.8 m/s. The ball is caught 43.5518 m from the thrower. The acceleration due to gravity is 9.81 m/s^2

How long is it in the air?
Answer in units of s.
How high is the tallest spot in the ball’s path?
Answer in units of m

Answers

Answer:

12 seconds in the air

2.5

very high

132

Explanation:

A car accelerates from rest at a rate of 4 m/s’2 . How many seconds will it take the car to reach a final speed of 16m/s

Answers

Answer:

t = 4 [s]

Explanation:

To solve this problem we must use the following equation of kinematics.

[tex]v_{f}=v_{o}+a*t[/tex]

where:

Vf = final velocity = 16 [m/s]

Vo = initial velocity = 0

a = acceleration = 4 [m/s²]

t = time [s]

Now replacing:

[tex]16=0+4*t\\t = 16/4\\t = 4[s][/tex]

why is it important to include variety in your workouts

Answers

Explanation:

Variety in to an exercise program allows the body to adapt to many demands, from high intensity exercise to slow, steady state exercise. Variety is important in a fitness program because it allows for your body to be challenged on a consistent basis and to overcome a plateau.

A particle is launched at an angle of 37° from horizontal. If the horizontal velocity component is 7.65 meters/second, what is the resultant velocity of the particle?

Answers

Answer:

R = 9.58 m/s

Explanation:

cos(37) = (7.65 m/s)/R

R = (7.65 m/s)/cos(37)

R = 9.58 m/s

Suggest a measure that a government can take to reduce a country's energy use ​

Answers

Answer:

Using alternative sources of energy like solar power,wind powermake aware people about using less energyconduct more hydroelectricity projects

a disk initially at rest rotates with constant angular acceleration through an angel of 50 rad in 5 sec find the angular speed of the disk just after 3 sec. please step by step

Answers

Recall the formula,

θ = ωt + 1/2 α t ²

where ∆θ = angular displacement, ω₀ = initial angular speed (which is zero because the disk starts at rest), α = angular acceleration, and t = time. Solve for the acceleration with the given information:

50 rad = 1/2 α (5 s)²

α = (100 rad) / (25 s²)

α = 4 rad/s²

Now find the angular speed ω after 3 s using the formula,

ω = ω₀ + α t

ω = (4 rad/s²) (3 s)

ω = 12 rad/s

What might happen if you were in a braking car and you weren’t wearing your seatbelt?

Answers

Answer:

well it depends on how fast for short its B

Explanation:

A car traveling at 50 m/s comes to a stop in 5 seconds. What is the
acceleration of this car?

Answers

Answer:10

Explanation:

You have to do speed divided by time so your answers 10

How much resistance allows 6V battery to produce a current of 0.006 amps?

Answers

Answer:

It produces 1000Ω.

Explanation:

You have to apply Voltage formula, V = I × R :

V = I × R

6 = 0.006 × R

R = 6 ÷ 0.006

R = 1000Ω

We have that from the Question"How much resistance allows 6V battery to produce a current of 0.006 amps?" it can be said that  How much resistance that allows 6V battery to produce a current of 0.006 amps is

R=1000 ohms

From the Question we are told

How much resistance allows 6V battery to produce a current of 0.006 amps?

Generally the equation for Resistance mathematically given as

[tex]R=\frac{V}{I}\\\\\Therefore\\\\R=\frac{V}{I}\\\\R=\frac{6}{0.006}\\\\[/tex]

R=1000 ohms

Therefore

How much resistance that allows 6V battery to produce a current of 0.006 amps is

R=1000 ohms

For more information on this visit

https://brainly.com/question/19007362?referrer=searchResults

F = m x a. A ball of mass 0.35kg rolls on a smooth surface hits another object at rest and of mass 7kg. The second object gets an acceleration of 1.5m/s2. What acceleration does the ball get? Use newton’s third law.
Please show the working and thankyouu!!

Answers

Answer:

The acceleration the ball gets = 30 m/s²

Explanation:

The given parameters are;

The mass of the first ball that hits an object, m₁ = 0.35 kg

The mass of the object hit by the ball, m₂ = 7 kg

The acceleration given to the second object, a₂ = 1.5 m/s²

Let the a₁ represent the acceleration the ball gets

Newton's third law states that action and reaction are equal and opposite, therefore, the force exerted on a body A by a body B is equal to the force exerted on the body B by the body A;

Therefore, we have;

The force exerted on the object, F₂ = m₂ × a₂ = 7 × 1.5 = 10.5 N

The force the ball exerts on the object = F₁ = m₁ × a₁ = 0.35 × a₁

By Newton's third law, F₁ = F₂, which gives;

m₁ × a₁ = m₂ × a₂

0.35 × a₁ = 10.5

a₁ = 10.5/0.35 = 30

The acceleration the ball gets = a₁ = 30 m/s².


______ atoms do not easily react with or
form bonds with other atoms.

Answers

Answer:

the Noble gases

Explanation:

the Noble gases are atoms that do not easily react with or form bonds with other atoms

URGENT ANSWER ASAP PLEASE

What is the relationship between memory and learning? Memory and learning are the same process. Memory is more important than learning. Memory is the foundation of all learning. Memory outlasts learning

Answers

Answer:

learning and memory are very closely related concept . Learning is the acquisition of silk or knowledge, while memory is the expression of what you've acquired.Another difference is the speed with which the two things happen if you acquire the new skill or knowledge slowly and laboriously, that's learning

Answer: I took a test that had this question and the answer was Memory is the foundation of all learning. I hope this helps

A dog walks a distace of 100 ft in 20 s of time. What is the dogs speed in feet per second

Answers

The speed is 5 feet per sec

Answer:

5 sec

Explanation:

What is the voltage required to move 3A through three resistors (2ohms, 3ohms & 5ohms)?

Answers

Are the resistors in series?

How long would a circuit be connected to produce a current of 0.65 A with a charge of 380 C?

Answers

Answer:

what grade are you dude

1. A car has a mass of 400 kg and is driving down a hill at 2 m/s/s. What is the force of the car?​

Answers

Answer:

l think the right answer is 4720

how does the electric force between two charged particles change if the distance between them is decreased by a factor of 3?

Answers

Answer:

F' = 9F

Explanation:

The electric force between charges is given by :

[tex]F=\dfrac{kq_1q_2}{r^2}[/tex]

It means,

[tex]F\propto \dfrac{1}{r^2}[/tex]

If distance decreased by a factor of 3, r' = r/3

Net force will become,

[tex]F'=\dfrac{kq_1q_2}{r'^2}\\\\=\dfrac{kq_1q_2}{(\dfrac{r}{3})^2}\\\\=9\dfrac{kq_1q_2}{r^2}\\\\=9\times F[/tex]

It means new force will become 9 times that of the initial force.

Answer:

it is increased by a factor of 9

Explanation:

just took the test

John is a runner. He runs the 100m sprint in 10.6s. What speed did he travel at? (in m/s)

Answers

he traveled in 9.4 m/s

The answer you are looking for is approximately 9.4 m/s.

Solution/Explanation:

First, writing out the formula for the speed of an object, encompassing distance and time, in meters per second, or m/s,

S=D/T.

"S" stands for "Speed."

"D" stands for "Distance."

"T" stands for "Time."

Speed (S)=????

Distance (D)=100m.

Time (T)=10.6s.

Substituting the given values of the variables,

S=100m/10.6s.

100÷10.6=9.43396226415≈9.4.

So, therefore, the final answer is approximately 9.4 m/s.

I hope that this has helped answer your question. Good day to you.

what is the main reason why people use machines

Answers

Answer:

Machines are faster and more efficent

Explanation:

Answer: Machines makes work easier and save some time and is very fast. For example, an elder can't walk or stand very long, so people made a motorized wheelchair!

Explanation:

properties can be used to distinguish and separate substances.

Answers

Answer:

true

Explanation:

You do work when you shovel your driveway. If you use a snow blower, is the work done more, less or the same? Explain.

Answers

Answer:

i would say either more or the same

Explanation:

Which statements about carbon-14 dating are true? Check all that apply. Carbon-14 decays into nitrogen-14. Carbon-14 has a longer half-life than potassium-40. Once a living thing dies, it no longer takes in carbon. Carbon-14 dating is used to date very old volcanic rock. Carbon-14 dating works for fossils as old as 50,000 years.

Answers

Answer:

135

Explanation:

A person, of weight mg, is standing on a scale in an elevator. What will the
scale read when the elevator accelerates upward?

A. More than mg
B. Less than mg
C. Equal to mg
D. Cannot tell what the scale will read.

Answers

more than mg

Explanation:

the pressure

Find the speed of a wave with wave length 650 M and a frequency 35HZ

help.

Answers

Answer:

option A

Explanation:

wave speed= 650×35= 22750 m/s

hope it helps !

Answer:

option is the correct answer mark me as a brain list pls

Which of the following is extrusive? Lava, Magma, Laccolith, Batholith.

Answers

Answer:

lava

Explanation:

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