How does carbon dioxide affect the atmosphere

Answers

Answer 1

Answer:

Explanation:

Carbon dioxide is a naturally occurring greenhouse gas... An increase in the amount of carbon dioxide creates an overabundance of greenhouse gases that trap additional heat. This trapped heat leads to melting ice caps and rising ocean levels, which cause flooding.

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If a bar magnet is cut 3 times resulting in 4 smaller magnet pieces, then each new magnet will have *A.only a N pole

B. only a S pole

C. both a N and S pole

D.neither a N nor a S pole

Answers

Answer:

I guess it was C.both a N and S pole...

Comment if I was wrong.

What is an isotope ?

Answers

An isotope is a form of a chemical element whose atomic nucleus contains a specific number of neutrons in addition to the number of protons that distinctively defines the element. The nuclei of most atoms have neutrons as well as protons.

Which term describe the substance that forms when two or more types of atoms join?A. element
B. compound
C. composite
D. mixture

Answers

Answer:

A. element

Explanation:

A molecule is formed when two or more atoms join together chemically. If atoms combine that are of two or more different elements, we call that a compound. All compounds are molecules, but not all molecules are compounds.

C i’m pretty sure but don’t take me as your first answer i just need to answer a question to ask one.

A tennis ball is dropped from 1.43 m above theground. It rebounds to a height of 0.945 m.
With what velocity does it hit the ground?
The acceleration of gravity is 9.8 m/s
2. (Let
down be negative.)
Answer in units of m/s
(This I already know -5.29 but I just don't know how to continue and do the rest of the parts)

Part 2
With what velocity does it leave the ground?
Answer in units of m/s.

Part 3
If the tennis ball were in contact with the
ground for 0.00638 s, find the acceleration
given to the tennis ball by the ground.
Answer in units of m/s
2.

Answers

Answer:

Part 2: 4.30 m/s

Part 3: 1503 m/s^2

Explanation:

First you already had -5.29 m/s

Part 2

With what velocity does it leave the ground ?

it is the same process as question 1, but in this case the height is 0.945 m

$v =√(2gh)$

$v =√(2*9.8*0.945) \nv =4.30\ m/s$

Part 3

This is a simple formula of :

$v_(f)-v_(i)=at \nwhere \nv_(f): final\ speed \nv_(i): initial\ speed \na: acceleration\nt: time$

Final speed: is the speed the ball leaves the ground = 4.30 m/s

Initial speed: is the speed the ball hits the ground = -5.29 m/s

4.30 - (-5.29) = 0.00638a

a = 1503 m/s^2

You own a high speed digital camera that can take a picture every 0.5 seconds. You decide to take a picture every 0.5 seconds of your physics teacher as she drops a watermelon off the top of the school. After you develop and analyze the pictures, you realize that the distance the watermelon falls from the teacher in each new picture isA) the same in each picture.
B) gradually less in each picture.
C) gradually more in each picture.
D) proportional to the mass of the watermelon.

Answers

-- There is no need to develop the pictures. They are available immediately in a digital camera.

-- There is no change in the teacher from one picture to the next.

-- The distance the watermelon falls from the teacher in each new picture is more in each picture than in the picture before it. (C)

_______ are atoms that carry an electric charge. A. Colloids
B. Electrolytes
C. Nonelectrolytes
D. Ions

Answers

the answer is D. hope this helps.

Answer:

Ions are atoms that carry an electric charge.

Explanation:

An ion is an atom or molecule that does not have a neutral electric charge. In other words, ions are atoms or groups of atoms that have an electric charge. Ions with a positive charge are called cations. Those with a negative charge are called anions.

Ionization is the formation of electrically charged molecules or atoms. Atoms are electrically neutral. The loss of one or more electrons from a neutral atom forms a cation. Conversely, an anion is an ion whose net charge is negative due to an increase in the number of electrons.

Cations and anions are usually represented with the symbol of the corresponding atom or group of atoms and the symbol "+" or "-", respectively. If the number of electrons gained or lost is greater than one, this is indicated by the corresponding number.

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