Niagara Falls is about 50 m high. a. What is the temperature rise in kelvins of the water from just before it goes over the cliff to just after it hits the rocks at the bottom of the falls, assuming negligible air resistance during the fall and that the water doesn't rebound but just splats onto a rock? It is helpful (but not essential) to consider a 1 g drop of water. b. In the Niagara Falls hydroelectric generating plant, the energy of falling water is converted into electricity. Assuming that the energy conversion is highly efficient, approximately how much energy is obtained from one kilogram of falling water? Approximately how many kilograms of water must go through the generators every second to produce a megawatt of power (1 x 106 W)?

Niagara Falls is about 50 m high. a. What is the temperature rise in kelvins of the water from just before it goes over the cliff to just after it hits the rocks at the bottom of the falls, assuming negligible air resistance during the fall and that the water doesn't rebound but just splats onto a rock? It is helpful (but not essential) to consider a 1 g drop of water. b. In the Niagara Falls hydroelectric generating plant, the energy of falling water is converted into electricity. Assuming that the energy conversion is highly efficient, approximately how much energy is obtained from one kilogram of falling water? Approximately how many kilograms of water must go through the generators every second to produce a megawatt of power (1 x 106 W)?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Related questions

Q: 2. You are heading over to get some Gatorade out of the cooler when a clumsy teammate breaks the tap…

A: Given data: Height of gatorade = h = 85 cm Area of hole = A = 7.85 x 10-5 m2Density = ρ = 1000 kg/m³

Q: Q1/ The air circulation in a large room by using fan (10 hp). Assuming a well-insulated, sealed room…

A: Given, Large room is well-insulated. Hence, heat transfer to and from room is zero. Hence, δQ = 0.…

Q: An automobile tire on a blue car has an air pressure of 233,330 Pascals (kg/m/s/s). A mischievous…

A: P1V1 = m1RT1 , mass, volume temperature and R are constant P1m1 = RT1/V1P1/m1 = P2/m2 m2/m1…

Q: A rock falls from a vertical cliff that is 4.0 m tall and experiences no significant air resistance…

Q: hoose the correct statement for the total energy by flowing fluid 3 points quation: V² + gz 2 • = h…

Q: 1. What is the most probably the value of standard atmospheric pressure at sea level? a. 764mmHg b.…

A: Note:As per our guidelines we are supposed to answer only one question. Kindly repost other…

Q: A beaker of water sits on a balance. A metal block with a mass of 70 g is held suspended in the…

Q: A compressor in a high performance car's turbocharger draws in air at 10 °C and atmospheric pressure…

Q: States will always, le PRT FELE B. The water in a tank is pressurized by air, and the pressure is…

Q: A tank filled with 4716 Liter water emptied within 19 minutes. What is the flow rate in m³/h?

Q: 4. The absolute pressure in water at a depth of 9 m is read to be 185 kPa. Determine a) the local…

A: Given data: The absolute pressure in water at depth of 9 m is Pabs = 185 kPa = 185000 PaThe depth of…

Q: 1)The gravity at a location is 5 m/s². The density of fluid was 2000 kg/m³. The pressure exerted by…

Q: Q2: The pressure in an automobile tire depends on the temperature of the air in the tire. When the…

Q: 1. Consider the following diagram. The fluid flowing in the pipe is oil (SG = 0.830). The fluid in…

Q: A cylindrical tank contains air, oil and water, as shown in the Fig; the air is under gage pressure…

A: gage pressure P= 2 bar. find the exit velocity .

Q: Three types of fluids stack in an open tank as shown in the plot. Select the expression of the gage…

Q: A compressed air tank in a service station has a volume of 10 ft³. It contains air at 70°F and 150…

Q: Q1) A stationary nozzle produce a water jet and the jet strikes an axisymmetric plate as shown. The…

A: Given data

Q: A pump is cavitating at its inlet (i.e., on the suction side). The fluid is water at 120°F. The…

A: Given : The temperature of fluid is The atomsphere pressure is

Q: Problem 6 Suppose a process takes 1.0 mol of monoatomic ideal gas in a closed system from state 1 to…

A: For an ideal gas, internal energy is a function of only temperature, which means that internal…

Q: Q.1- The water level, h (t), is controlled by an open-loop system as shown in figure below. A dc…

A: (a) The height of the water tank is

Q: (a) Elastic 6) Reynold's number is the ratio of inertia force to (a) pressure force (b) elastic…

Concept explainers

Properties of Fluids

The term fluid represents a type of substance that can easily change its shape under any external pressure/force and can flow. Fluids can acquire any shape in which it is stored and can resist normal stresses but cannot resist shear stress in rest condition. Whenever external shear stress is applied to fluids, it starts to flow. The fluids may be liquid or gas. Example- water, air, etc.

Question

9. Niagara Falls is about 50 m high.
a. What is the temperature rise in kelvins of the water from just before it goes over the cliff to
just after it hits the rocks at the bottom of the falls, assuming negligible air resistance
during the fall and that the water doesn't rebound but just splats onto a rock? It is helpful
(but not essential) to consider a 1 g drop of water.
b. In the Niagara Falls hydroelectric generating plant, the energy of falling water is converted
into electricity. Assuming that the energy conversion is highly efficient, approximately how
much energy is obtained from one kilogram of falling water? Approximately how many
kilograms of water must go through the generators every second to produce a megawatt
of power (1 x 106 W)?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

A tow truck exerts a force of 450 lb. on a car, causing it to accelerate at 10ft/s^2. What is the mass of the car?
A child takes a helium balloon on a plane from Denver (with an air pressure of 0.83 atm) on a cool day when the temperature is 20.0oC to Boston (at sea level, with an air pressure of 1.0 atm) where the temperature is 5.0oC. Assume that no gas escapes from the balloon during the flight. What is the volume of the balloon in Boston, relative to its size in Denver? Group of answer choices The volume in Boston is 0.79 times the volume in Denver. The volume in Boston is 0.20 times the volume in Denver. The volume in Boston is 0.87 times the volume in Denver The volume in Boston is 1.3 times the volume in Denver. The volume in Boston is the same as the volume in Denver.
Q3: The top part of a water tank is divided into two compartments. Now a fluid with an unknown density is poured into one side, and the water level rises a certain amount on the other side to compensate for this effect. Based on the final fluid heights shown on the figure, the density of the fluid added is . (Assume the ....... .liquid does not mix with water) * Unknown liquid 80 cm 95 cm WATER 50 cm 188 kg/m3 O 125 kg/m3 563 kg/m3 420 kg/m3 O
A liquid of specific gravity of 1.75 flows in a 6 cm horizontal pipe. The total energy at certain point in the flow is 80 J/N (joules/newton). The elevation of the pipe above the fixed datum is 2.6 m. If the pressure is 75 kPa. Determine the power available at the specified point in kW.(WITH FREE BODY DIAGRAM) CHOICES: A.148.91 B.146.96 C.142.25 D.144.22
Answer no.14
A differential manometer is connected at the two points A and B as shown. At B air pressure is 9.84 N/cm2 (abs), find the absolute pressure at A using the following data. - Specific Gravity of oil as 0.89; - Distance, C = 22 cm; - Distance, D = 104 mm; Distance, E = 0.76 m. AIR WATER :A E OIL D MERCURY Sp. gr. = 13.6 רנ ווא ודצד