19. Engineer It In some rivers and lakes, dams
are constructed to harvest energy by converting the
kinetic energy of moving water into electrical energy.
Water from behind the dam flows through a turbine
that transforms kinetic energy into mechanical
energy. The turbine turns a generator that converts
mechanical energy into electrical energy.
The water from behind the dam could flow to the
turbine either through an opening near the middle or
top of the dam or by flowing over the top of the dam.
Which type of water flow would be the best design for
sending a consistent flow of water past the turbines?
Explain your reasoning.

Answers

Answer 1

Answer:

A hydroelectric dam converts the potential energy stored in a water reservoir behind a dam to mechanical energy—mechanical energy is also known as kinetic energy. As the water flows down through the dam its kinetic energy is used to turn a turbine.

Explanation:


Related Questions

who is well known for his theory of evolution​

Answers

Answer:

Charles Darwin

The answer is Charles Darwin

What are the two things that the mitochondria need to take in for Cellular Respiration to occur?

A. Sugar (glucose) & Oxygen
B. Carbon dioxide, Water, & Energy
C. Neither of these is true

Answers

Answer:

Oxygen and glucose are both reactants in the process of cellular respiration (option A)

Explanation:

Oxygen is needed to help in the process of transforming glucose into ATP.


In an energy pyramid only about
of energy is transferred from one level to the next
get the most energy, while
consumers get
the least. This is because organisms use the energy during growth, metabolism, and cellular processes, much of the energy is lost in in the form of

Answers

Answer:

Heat

Explanation:

Energy that is not use in an ecosystem is eventually lost as heat. Energy and nutrient are passed around through the food chain, when one organism eat another organism any energy remaining in a dead organism is consumed by decomposes.

New genetic combinations are a result of
a. Nondisjunction
b. Crossing over
c. accidents
d. all of the above

Answers

Answer:

Explanation: D

what type of carbohydrate is created by photosynthesis?

Answers

Answer:

glucose

Photosynthesis requires sunlight, carbon dioxide, and water as starting reactants (Figure 5.5). After the process is complete, photosynthesis releases oxygen and produces carbohydrate molecules, most commonly glucose.

4 points
Living organisms have different levels of organization. Which of the
following lists the levels of organization from lowest to highest (smallest to
largest)? *
organ system -> tissue -> organ -> cell
cell -> tissue -> organ -> organ system
organ system -> organ
R
tissue -> cell
cell -> organ -> tissue -> organ system
O
4 points

Answers

Explanation:

cell -> tissue -> organ -> organ system

Which molecule binds NMDA receptors and prevents the flow of ions at resting and hyperpolarized membrane potentials

Answers

Answer:

it is in the cell

Explanation:

What is the blood vessel that shunts blood from the pulmonary artery to the aorta during fetal life called

Answers

Answer:

the ductus arteriosus . I hope this helps you

what would be the independent, dependent, and control variable to how coral dies? (100 points)

Answers

Answer:

in the explanation

Explanation:

The independent variable would be us humans polutling the ocean with oil and other plastics destroying the coral reefs. The dependant variable is an abbrasive species of fish becoming overpopulated and killing all the fish that help the coral grow causing the coral to die. (independant variable basically means humans tampering with it causing the problem. dependent is naturally occuring humans cant control whether a fish overpopluates or not thats natural)

Pith is composed of ______. Multiple choice question. companion cells sclerenchyma cells collenchyma cells parenchyma cells

Answers

Answer:

parenchyma cells

Explanation:

Use examples to explain how the geosphere interacts with two other of Earth's spheres. Explain the interaction for each using complete sentences. HELPPPP

Answers

Answer:The interaction between Geosphere, atmosphere and hydrosphere: Geosphere interact with various spheres of earth and help in various cycles of element and performing different processes. One of the examples of such interaction is the geosphere interacts with the atmosphere and hydrosphere when a volcano erupts.

A volcano is a structure or the part of the geosphere which releases lava and particulate matter into the atmosphere where it plays a role as a center particle or nuclei for the water droplets which is come down into river and land in the form of rainfall which is a part of the hydrosphe

pls give me a branlest

mendel’s law of segregation states that the two alleles for each gene separate during gamete formation. during which stage of meiosis do the alleles separate?

Answers

anaphase (the chromatids pull apart to opposite ends)

The stage of meiosis at which the alleles separate is anaphase. The correct option is B.

What is meiosis?

Meiosis is a type of cell division of germ cells that produces gametes such as sperm or egg cells in reproducing organisms through gametes.

It entails two rounds of division, resulting in four cells with only one copy of each chromosome.

Meiosis 1 separates a pair of homologous chromosomes and converts a diploid cell to a haploid cell. It is divided into four stages: prophase, metaphase, anaphase, and telophase.

The homologues are pulled apart and moved to opposite ends of the cell during anaphase I.

The sister chromatids of each chromosome, on the other hand, remain attached to one another and do not separate. Finally, in telophase I, the chromosomes arrive at the cell's opposite poles.

Thus, the correct option is B.

For more details regarding meiosis, visit:

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Your question seems incomplete, the missing options are:

Metaphase.Anaphase.Prophase.Embryo formation.

how does the shape of molars helps them carry out their function.

Answers

Answer:

Since molars have a large flat surface, that surface makes it easy to carry out their function of grinding, tearing, and crushing food.

Explanation:

what’s the acceleration of an object with 1 kg and 1 N?

Answers

Answer:

What is the acceleration on an object with a mass of 1 kg if a force of 1 Newton is acting on it? 1 Newton = 1 kg • m/s2 One Newton is defined as the amount of force required to give a 1-kg mass an acceleration of 1 m/s/s.17

2. Why are unicellular organisms considered organisms? Exp

Answers

Answer:

Unicellular organisms are made up of only one cell that carries out all of the functions needed by the organism, while multicellular organisms use many different cells to function. Unicellular organisms include bacteria, protists, and yeast

PLZ HELP! why it is important to base scientific theories and models on empirical evidence as opposed to other ways of knowing such as religion​?​

Answers

Answer:

A theory not only explains known facts; it also allows scientists to make predictions of what they should observe if a theory is true. Scientific theories are testable. New evidence should be compatible with a theory.

Explanation:

How do I get rid of my Self harm scars??

Answers

Boii do i sure wish i knew T^T

The oldest living plants are __________. Your text describes one such plant,that is more than __________ years old.

Answers

Answer:

the oldest living plant is seagrass colony

Explaination:

The plant is over 100000 years old

10. What are the products of aerobic respiration? نقطة Ůاحدة a. Carbon dioxide and Water b. Glucose and Oxygen c. Glucose and Water d. Carbon Dioxide and Oxygen.

Answers

Answer:

a) Carbon dioxide and water

Explanation:

The reaction is called aerobic respiration, and it produces energy which transfers to the cells. Aerobic respiration makes two waste products:carbon dioxide and water.

how is the malphigan body adapted for it's function

Answers

it adapted because in order to be able to run in the human body the heart has to be able to operate

Seedless plants grow from __________?

I need an answer for an 7 or 8 grader

Answers

Seedless vascular plants are plants that contain vascular tissue, but do not produce flowers or seeds. In seedless vascular plants, such as ferns and horsetails, the plants reproduce using haploid, unicellular spores instead of seeds.

HOPE IT HELPS :)

PLS FOLLOW :)

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What process allows the cell to remain efficient

Answers

Answer:

cell growth control

Explanation:

could you give me brainliest?

What is the relationship between the light-dependent and light-independent reactions of photosynthesis

Answers

Answer:

In the light-dependent reactions, energy from sunlight is absorbed by chlorophyll and that energy is converted into stored chemical energy. In the light-independent reactions, the chemical energy harvested during the light-dependent reactions drives the assembly of sugar molecules from carbon dioxide.

Explanation:

hope it's help♡

which of these neurotransmitters does not bind to a plasma membrane receptor?

Answers

When neurotransmitter molecules bind to receptors in the plasma membrane of the receiving neurona. ion channels in the plasma membrane of the sending neuron open. b. ion channels in the plasma membrane of the receiving neuron open. c. the receiving neuron becomes more negative inside. d. the receiving neuron becomes more positive inside. e. vesicles in the synaptic terminal fuse to the plasma membrane of the sending neuron.

Which scientist was the first to use the term cell to describe what he saw under the microscope?

Answers

Answer:

Scientist Robert Hooke

a red onion cell has undergone a change, as represented in the diagram below. This change is most likely due to the cell being placed in...

Answers

Salt water.
We can see that the cell is shrivelled meaning osmosis has taken place. So it must be salt water

A red onion cell placed in a saline solution will lose water when water moves from the cell to the surrounding hypertonic medium via osmosis, causing the cell to shrivel up.

What is osmosis?

The passage of solvent molecules from a lower concentration solution to a higher concentration solution across a semipermeable membrane. It is a passive process that occurs without the use of any energy.

Solvent molecule transfer proceeds from low to high concentration regions until the concentrations on both sides of the membrane are equal.

What are the types of osmosis?An isotonic solution contains the same solute concentration both within and outside the cell.

A hypertonic solution has a larger solute concentration outside than inside the cell.

A hypotonic solution contains a larger concentration of solutes inside the cell than outside.

Thus, we can conclude that when a red onion cell is placed in salt water.

As we can see in the diagram the onion cell shrink which means it is placed in salt water which is a hypertonic solution.

So, option (3) salt water is correct.

You can learn more about osmosis here:

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PLEASE PLEASE SOMEONE HELP PLEASE BRAINILY I ASSURE YOU

Answers

Salt marshes, mangroves, and seagrass beds absorb large quantities of the greenhouse gas carbon dioxide from the atmosphere and store it, thus decreasing the effects of global warming. ... Carbon sequestration — the process of capturing carbon dioxide from the atmosphere, measured as a rate of carbon uptake per year

noaa

A sieve is a container with a mesh or perforated bottom. What is the most common use for a sieve? A. to steam cook chemicals in the lab B. to store liquid substances C. to allow gases to escape from reactions D. to filter larger particles out of a mixture

Answers

The answer is D to filter please brainlyist

Answer: D

Explanation: Sieves are used to separate the solid smaller particles from a mixture. They are usually made of metal or fine plastic mesh, with openings between the wires that are sized according to the sizes of the desired particles in the mixture. Dried foods such as beans and rice are separated by using screens with openings of different sizes, small for whole grains, larger for cracked grains. Other kinds of products which require separation may be filtered through sieves, including sugar mixtures before they are packed or bottled.

Edexcel GCSE combined science biology paper 2 2020
If you know any questions please tell me just one will do TOT

Answers

Just look up the mark scheme online

PLS HELP ASAP ILL GIVE BRAINLKEST I GIVE 10 POINTS ITS NOT BB AND Bb

Answers

It’s the third one
BB, Bb, and bb
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what do you mean by decimal number systemplease give answer what s the biggest capitol? Billy Bob just bought a new car his car costs $75,000. how much money will he pay in taxes for the car if the sales tax is 6%? Find the values of x and y. Lan is interested in teaching _______ because she loves working with children. Select the pair of homonym from the choices below: A. Alter,alter b. Big,enormous c. Long,short d. Eyes,nose Which is the most highly sensitive time within the developing embryo for the risk of malformation related to environmental teratogens Where did each political party stand on these key issues? Democrat Whig Your thoughtsRole of Federal governmentMarket economyNational bankTariffsSlaveryIndian Removal ActsNullification Please help me with this MATH question. Please help I am confused between option (b) and (c) studies show that _____________ is the optimal amount of stress that people need to positively promote their health and sense of well-being, which coincides with ______________ theory. What do graphic aids do in informational texts? (1 point)A They present information visually to help readersB They illustrate the reasoning behind a statementC they alternate text and visuals to break up textsD They direct readers to relevant print resources peter cuts a piece of string into three lengths one is 4.26cm long one is 7.54cm long and the third is 3.90cm long how long was the string before it was cut Which European countries from 1815 to 1848 were filled with many national groups? Please Qu corriente Marina baa las costas de San Fernando y De qu manera beneficia la poblacin Lily is having her birthday party at Party Place. They charge $45 for the party and $10 for each guest at the party. How many friends can Lily invite to the party if she has a budget of $125? dose anyone know the answers? is Represent a concept or action help me pleaseeeee :( no links x/7 + y/5 =122x/5 - y/7 =9 What is the Answer for y=2+frac{1+x}{1-2x}