Help me fthffvghjhoun

Answers

Answer 1

7) Hydroelectric power
8) The people of riverview changed their power source because coal burning is a non renewable resource.
9) the role science plays in this change is making the environment safe because the burning of coal would cause pollution.

Answer 2

7) hydroelectric power

Related Questions

Scientific predictions based on laws are formulated using:

deductive reasoning
inductive reasoning
presuppositions
subjective reasoning

Answers

Answer:

A. deductive reasoning

The answer is definitely A

Why is melting a physical property of the wax from a burning candle, but flammability is a chemical property?

Answers

Explanation:

, , ' . .

Answer:The physical change is quite often and can be seen clearly. When the wax melts slowly and the candle gets smaller and smaller. This is the physical change of the burning candle. This wax that melts slowly comes together back into solid and the sticks to the candle. This is also a physical change.

Explanation:

Please Help I need it!!
(An electric motor uses regular magnets and an electromagnet to create motion. The attracting and repelling forces create rotational motion along with the electric current from the electromagnet.)
What two things can a car manufacturer do to make an electric motor stronger?

A) A car manufacturer can add coils to the electromagnet and increase the size of the magnets causing the rotational motion.

B) The car manufacturer can add coils the the electromagnet and decrease the size of the magnets causing the rotational motion.

C) The car manufacturer can remove coils from the electromagnet and increase the size of the magnets causing the rotational motion.

D) The car manufacturer can remove coils from the electromagnet and decrease the size of the magnets causing the rotational motion.

Answers

Answer:

The answers A i did the test

A car manufacturer can add coils to the electromagnet and increase the size of the magnets causing the rotational motion and the correct option is option A.

What are electromagnets?

Electromagnets are made out of a coil of wire (wire curled in series).

This is more effective in producing a magnetic field than just a wire running straight.

This effect can be strengthened by winding a wire tightly around a powerful core made of magnetic material, such as iron.

The strength of the magnetic field is proportional to the number of turns made around the iron core and how tightly they are wrapped around.

Therefore, a car manufacturer can add coils to the electromagnet and increase the size of the magnets causing the rotational motion and the correct option is option A.

Learn more about Electromagnets, here:

https://brainly.com/question/3427992

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ow doe the respiratory system work? (Use 3-5 sentences to explain how the respiratory system works.)

Answers

Answer:

The respiratory system is a system in your body that is in charge of helping you breathe. the respiratory system is made up of airways, lungs, and blood vessels, these parts work together to get oxygen into your body. Our respiratory system is a vital system, as it lets us live and breathe.

Explanation:

Here you go, don't copy exactly

A basketball is made of matter. fire itself is not matter, however the wood that burns is matter. a basketball is very diffrent from a fire. what are some diffrences that might make a basketball matter but not a fire

Answers

Answer: A basketball is a solid and fire is a gas

Explanation:

To prove that a basketball is a solid you can try to move your hand right through it, you cant so its a solid

To prove fire is a gas you can try to move your hand right through it, you can move your hand right through it so its a liquid or gas in this case it is a gas

Is this statement true or false?

If one or more substances change into new substances, a chemical change occurred.

true

false

Answers

Answer:

True

........

....

.....

....

...

True, the substance reacted to either the other substance or the surrounding air

What is an ellipse please help)

Answers

normal oval shape traced by a point moving in a plane so that the sum of the distance from the other points is constant.

In mathematics, an ellipse is a plane curve surrounding two focal points, such that for all points on the curve, the sum of the two distances to the focal points is a constant. As such, it generalizes a circle, which is the special type of ellipse in which the two focal points are the same.

Maybe they might use that math thing for Science.

what is the date that amarica started nuclier sciences

Answers

Answer:

can you help

Explanation:

Answer:

hear u go

Explanation:

The first self-sustaining nuclear chain reaction occurs at the University of Chicago. 1945 July 16. The U.S. Army's Manhattan Engineer District

Non-traditional data is often displated on food labels using a bar graph or a circle graph?
True
False

Please helpp

25 points ;)

Answers

The answer is true. Hope u have a nice day

Answer:

The correct answer is "True" hope this helps - Answer Expert Verified

Explanation:

Earthquakes, volcanic activity, and mudslides most commonly affect which region in the United States?
A.
the Northeast
B.
the Interior
C.
the South
D.
the West

Answers

The answer would be WEST
D would be your answer

The best answer for this would be D. The west :)

Gold is one of the Densest substance known, with the density of 19.3 g/cm3 . if the gold in the crown was mixed with a less-Valuable metal like Bronze or copper, how would that effect it's Density?

Answers

The density of the crown would be altered because in the same volume, it would have less mass than if it was pure gold. It would feel lighter because the density is lesser.

plz help as soon as possible

Answers

Answer:

A. It forms on the earth's surface

Answer: Extrusive igneous rocks are formed when magma is cooled above the ground it forms on the earth's surface.

Explanation: Extrusive igneous rocks erupt onto the surface, where they cool quickly to form small crystals. Some cool so quickly that they form an amorphous glass. These rocks include andesite, basalt, dacite, obsidian, pumice, rhyolite, scoria, and tuff.

11) Maricela and Joaquim are standing on the floor very close to each other. They are not touching. Which of the following statements is true about the forces that are present?
A) The is a large gravitational repulsion between the two students.
B) There is a large gravitational attraction between the two students.
C) There is a small gravitational repulsion between the two students.
D) There is a small gravitational attraction between the two students.

Answers

C if I am correct on this

Answer:

Explanation:

Anything with mass has gravitational attraction. Maricela and Joaquim have mass, which means they have gravitational attraction towards one another. Why are they not touching/getting close to one another? It is because both of them have a tiny amount of gravitational pull. In order for this to be considered a large amount of gravity (or B) , they would both would have to have a significant amount of mass, such as the moon or sun. The reason the answer is not A or C is because "gravitational repulsion" doesn't exist.

Which drawing represents the electric field surrounding two objects that have equal magnitude charges of opposite polarity?
A) A
B) B
C) C
D) D

Answers

Answer: B

Explanation:

An object with a positive charge will have its arrows pointing outwards, while a negative object will have its arrow pointing inwards.

Which of the following elements is inert, meaning it is not reactive?
a)Cesium
b)Gold
c)Iodine
d)Xenon

Answers

the answer ur looking for is B. gold :)

the answer is D. Xenon

Idk this question and I need help

Answers

Answer:

12 ML

Explanation:

BECAUSE THE WATER ROSE 12 ML SO THE KEY IS 12 ML

12 Mil because it’s stops there hopes this helps!

Plzz write a small pharghraph
Question:

A 250mL Erlenmeyer flask weighing 55g contains 5g of sodium bicarbonate. To this, an excess, 15g, of acetic acid is added to the flask. While swirling, many bubbles are present. Finally, you stop swirling the flask, and the bubbles stop. You then place this flask on an analytical balance. The mass registers 73g.

How does this final mass compare with the value expected according to the Law of Conservation of mass?

Why do you believe that this comparison exists?

State the Law of Conservation of Mass. Do these results break this law? Why?

What changes, if any, could be made to the procedures in this experiment to allow a closer comparison to what the Law of Conservation would expect?

Answers

Mass = reactencts, 73g

I need help with These two please

Answers

I believe the first beaker is 17ml and the second one is 29ml, I hope this helps! Also remember to drink water today.

First one is 17 second one 29

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