Answer:
The answer is Hydropower provides...
Hydropower provides renewable energy for human use is the advantage of the production of electricity through hydropower. Therefore, option (C) is correct.
What are the advantages of hydropower?Hydropower is a renewable source of energy that is used to generate energy via hydropower relies on the water cycle. Hydroelectric power can be defined as a domestic source of energy, allowing it to produce its own energy without depending on international fuel sources.
The hydropower sector creates reservoirs that provide recreational opportunities such as swimming, fishing, and boating. Hydroelectric power is flexible and has facilities that can quickly go from zero power to maximum output.
They provide necessary backup power during major electricity outages or disruptions because hydropower plants can produce power to the grid immediately.
Hydropower is affordable and provides low-cost electricity and durability over time compared to other sources of energy. Hydropower benefits beyond electricity production by providing irrigation support, flood control, and clean drinking water.
Learn more about hydropower, here:
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A runner completes a 400m race in 43.9s. What is his average speed?
Answer:
average speed around 9.1 meters/second
Explanation:
400 divided by 43.9
PLEASE HURRY (WILL MARK BRAINLIEST)
What happens when the sound waves released by a bat hit an object?
The sound waves are diffused.
The sound waves are reflected.
The sound waves are refracted.
The sound waves are absorbed,
Answer:
B.) The sound waves are reflected.
Explanation:
On edge,
i also answered so the other person could get the brainliest
Answer:
b
Explanation:
The characteristic bright–line spectrum of potassium is produced when electrons
A) jump to higher energy levels
B) return to lower energy levels
C) are lost by neutral potassium atoms
D) are gained by neutral potassium atoms
E) are released from the nucleus
Answer: B.
Explanation:
When the electron changes levels, it decreases energy and the atom emits photons. The photon is emitted with the electron moving from a higher energy level to a lower energy level. The energy of the photon is the exact energy that is lost by the electron moving to its lower energy level.
Hope this helps!
I WILL MARK BRAINLIST TO WHOEVER SHOWS FULL STEPS PLEASE LOOK AT THE IMAGE ABOVE
Answer:
+47°C
Explanation:
ΔT means change in temperature. If the change is positive, it means that heat was added and the temperature went up.
ΔT = final temp - initial temp
ΔT = 86°C -39°C = + 47°C
What is the volume of a weather balloon that has 39 grams of helium with a density 0.017 g/mL?
Answer:
The answer is 235.29 mLExplanation:
The volume of a substance when given the density and mass can be found by using the formula
[tex]volume = \frac{mass}{density} \\ [/tex]
From the question.
density = 0.017 g/mL
mass = 4 g
We have
[tex]volume = \frac{4}{0.017} \\ = 235.2941176...[/tex]
We have the final answer as
235.29 mLHope this helps you
A car with a mass of 800 kg is accelerated with a force of 6000 N. If resisting forces are ignored, what is the acceleration of the car? yen
Answer:
The answer is 7.5 m/s²Explanation:
The acceleration of an object given it's mass and the force acting on it can be found by using the formula
[tex]a = \frac{f}{m} \\ [/tex]
f is the force
m is the mass
From the question we have
[tex]a = \frac{6000}{800} = \frac{60}{8} = \frac{15}{2} \\ [/tex]
We have the final answer as
7.5 m/s²Hope this helps you
A rock occupies a volume of 20 cm3 and has a mass of 54 grams. Find the density of this rock
Answer:
2.7 gm/cm cubed
Explanation:
To get the answer, you should divide the mass by the volume or 54 divided by 20 = 2.7
Calculate the density in grams per cubic centimeter of a material that has a mass of
720 milligrams and a volume of 10.0 cubic centimeters. =
Answer:
1.72 g/cm ^3
Explanation:
HELP ME OUT PLEASE!! I NEED HELP !
This diagram represents one of the four levels of industry. Which term best
completes the diagram?
Factory employees
Oil refinery workers
Butchers
A. Quaternary sector
OB. Secondary sector
C. Tertiary sector
D. Primary sector
Answer: OB. Secondary Sectors.
Explanation: Make sure to study as the text provided, and study guide state manufacturers, butchers, and factory employees are apart of the secondary sector in the world economy. You’ll do great on Quiz 3.2.5! Make sure to study, have a g’day. Please don’t listen to people who say this answer is falsen as many other questions do, don’t be the one to spread false information as this people’s academics, here’s a picture as well ❤︎. Again, its B!
Which of the following statements is true about atoms?
Answer:
D
Explanation:
Elements can be described by their properties. Some of these properties are physical properties and some are chemical properties Observe the list provided. Which one of these contains ONLY Cchemical properties
A) C,E,F
B) B,C,E
C) B, E, F
D) C,D,E
Its a c,e,f
Sadly i got it wrong
Flammability, Ability to rust and Ability to tarnish (C,E,F) are chemical properties of an element.
The property of an element is the characteristic feature of that element which helps us to differentiate it from another element.
We have
The Physical proprieties- These are features of an element which we can identify by sight and touch, Some of them include colour, hardness, boiling and ,melting point, size etcChemical properties These are the features of an element which w\e observe when the element has undergone a chemical change which changes its composition. Examples are Flammability, rust, tarnish , corrosion etc.See more here:https://brainly.com/question/2116116
How many joules of heat are absorbed when 70.0 grams of water is completely vaporized at its boiling point ?
Answer: The answer would be 158,200
Help me please
Chemical energy is a form of_______ energy
A. heat
B. kinetic
C. potential
D. electromagnetic
Answer:
potential
............
Answer:
Chemical energy is a form of potential energy.
The gravitational attraction between two objects is determined by the mass of the two objects and the:
A. Distance between the objects
B. Weight of the objects
C. Diameter of the objects
D. Density of the objects
Answer:
A. Distance between the objects
Explanation:
The gravitational attraction between two objects is determined by the mass of the two objects and the distance between the two objects.
According to Newton's law of universal gravitation:
"the gravitational force of attraction between two bodies is directly proportional to the product of the their masses and inversely proportional to the square of the distance between them".
F = [tex]\frac{Gm_{1}m_{2} }{r^{2} }[/tex]
F is the gravitational attraction
G is the universal gravitation constant
m is the mass
r is the distance
We can see that the gravitational attraction depends on the mass of the bodies and the distance between them.
With circulation, the heart provides your body with:
a. oxygen
b. nutrients
C. a way to get rid of waste
d. all of the above
Explanation:
The lungs pump oxygen in and carbon dioxide out, which goes through the blood stream to help with the cell's energy needs.
Nutrients pass through the blood stream as well. The nutrients start with the digestive system (mouth, esophagus, stomach, small intestine) before going into the blood stream. The nutrients are building blocks to help make new cells when old ones die off.
When those cells die off, the body sheds them like dead skin, but internal dead cells are passed off as waste. This waste and other byproducts the body doesn't need passes through the blood stream as well.
In short, the blood stream is basically the highway to help get desired materials (eg: oxygen and nutrients) and get rid of waste (eg: carbon dioxide and other unwanted byproducts or dead cell material)
So that's why the answer includes A, B and C.
organisms which contain only one cell are?
Answer:
bacteria, protists, and yeast.
Explanation: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
1. The human eye can detect wavelengths of light as short as 0.000037 cm. What is this
wavelength in nanometers?
Answer:
0.000037 cm is 370 nanometers
Explanation:
? divided by 230 equals 273.1
PLZ HELP I NEED IT
Answer:
Explanation:
X / Y = 230
The answer is infinite. However, below we have created a list of what divided by what equals 230.
230 / 1 = 230
460 / 2 = 230
690 / 3 = 230
920 / 4 = 230
1150 / 5 = 230
1380 / 6 = 230
1610 / 7 = 230
1840 / 8 = 230
2070 / 9 = 230
2300 / 10 = 230
Temperature is a measure of the average _____energy of particles in a substance.
Answer:
kinetic energy
Explanation:
Answer:
kinetic energy
Explanation:
In physics, the kinetic energy of an object is the energy that it possesses due to its motion. It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity. Having gained this energy during its acceleration, the body maintains this kinetic energy unless its speed changes.
What is the mass of 18.5 moles of iron?
Answer:
1 mole =56 g
18.5 moles =56×18.5
=1036 moles Hope this helps you Stay happy and safe Do mark as brainliest ✌️Conservation of Mass in Chemical Reactions: 7th grade Science
Question: In a chemical reaction, the total mass of the reactants is 10.0 grams. After the reaction, the total mass of the products must be
A. More than 10.0 grams
B. Exactly 20.0 grams
C. Exactly 10.0 grams
D. Less than 10.0 grams
Answer:
After the reaction, the total mass of the products must be D. Less than 10.0 grams
Which of the following atoms has the greatest ionization energy?
a.)W
b.)C
C.)d
P.)d
Answer:
helium
Explanation:
because there are no electrons screening it from the nucleus
what "waste" does the blood cell drop off at the lungs .... ANSWER ASAP AND I POINT EXTRA
Answer:
it drops off of carbon dioxide... but i believe when the blood returns to the heart it " travels" through the pulmonary veins...
use your brain :) brainliest pweasee?
Describe the difference between balanced forces and unbalanced forces.
Answer:
If two individual forces are of equal magnitude and opposite direction, then the forces are said to be balanced. An object is said to be acted upon by an unbalanced force only when there is an individual force that is not being balanced by a force of equal magnitude and in the opposite direction.
In a solution, the particles of different substances are ___ a. mixed evenly, b. never mixed, c. mixed unevenly, d. separated from each other. PLEASE ANSWER ASAP TY
Which of the following happens to the particles when the temperature of liquid water drops?
Explanation:
when water is in liquid form and the temperature DROPS it becomes solid ice the process is melting , freezing and evaporation this goes in a circle
Identify the techniques used to separate the components of the given mixtures.
1. Faucet with cloth
2. Nails attracted by magnets
3. Pouring off liquid from rice
4. Sorting buttons with different colors
5. Use of sieve to produce finer sand
Answer: 1.valving , 2. picking, 3. decantation , 4. sorting, 5. seiveing
Thank me later!
Why can two water molecules stick to each other?
All surfaces have texture, which means it affects how things move over it. When it takes a long time for friction to slow down an object, what is most likely true about the surface the object is moving on? The surface is dry. The surface is rough. The surface is uneven. The surface is smooth.
The question is incomplete, the complete question is;
All surfaces have texture, which means it affects how things move over it. When it takes a long time for friction to slow down and object, what is MOST LIKELY true about the surface the object is moving on? (A) The surface is dry (B) The surface is rough (C) The surface is uneven (D) The surface is smooth
Answer:
(D) The surface is smooth
Explanation:
Friction exists because of relative motion between two surfaces in contact with each other. However the magnitude of friction depends on how rough or smooth the surface is.
For smooth surfaces, there is little or no resistance to motion as objects move over the surface. Hence objects take a longer time to slow down on a smooth surface due to very little friction.
On a rough surface, objects tend to slow down relatively quickly. Hence, less resistance to motion on a smooth surface makes an object to take a longer time to slow down on a smooth surface than on a rough surface.
Answer: D
Explanation: Because if the surface is smooth it causes it to be more even for it to be able to cause Friction
if you find this helpful, Your welcome, if not, sorry.
is it true that the atomic radius of A1 is greater than the atomic radius of In ?
Answer:
Yes
Explanation:
Yes it is true