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jok3333 [9.3K]
2 years ago
15

PLEASE ANSWER THIS ASAP I WILL MARK YOU THE BRAINLIEST The actual subject is Science but they dont have that as a option in pick

a subject

Physics
1 answer:
Sophie [7]2 years ago
5 0

Explanation:

speed : • how fast an object changes position

• miles per hour.

• distance/time.

velocity: • speed in a direction

• miles per hour North

• distance/ time in a direction

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Photons are also known as beta particles. (true or false)
Llana [10]
No. Beta particles are electrons.
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3 years ago
When hydrogen peroxide antiseptic is tightly capped and left on the shelf for a long period of time, the bottle is observed to s
viktelen [127]

Answer:

The hydrogen peroxide decomposes as: H_2O_2\rightarrow 2H_2O+O_2

Explanation:

Hydrogen peroxide antiseptic although tightly capped but left on the shelf for a long time leads to swollen bottle and opens with a hissing sound because hydrogen peroxide reacts with air in presence of light to dissociate into water and oxygen molecules that leads to high volume of content in the tightly closed bottle and formation of water molecules from hydrogen peroxide.

Once the hydrogen peroxide has turned into water molecules it is no longer effective as an antiseptic.

5 0
2 years ago
Question 2 of 25
True [87]

Answer: The symbol representing  the result of a  gas expanding against a constant pressure is W

Explanation:

According to first law of thermodynamics, energy can neither be destroyed nor created but rather transferred to one place to another and converted to and from other energy forms.

The mathematical form of first law of thermodynamics is:

\Delta U=q+W

where \Delta U = change in internal energy

q = heat absorbed or released

W = work  (W= P\Delta V)

P = pressure

\Delta V = volume change

Thus the changes in heat or work leads to change in internal energy.

5 0
3 years ago
In order to safely conduct any experiment in the laboratory, it is crucial that you
vekshin1
<span>Lab Safety Rules:

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3 0
3 years ago
Which type of mirror causes light rays to refract away from each other?
Vikentia [17]
Mirrors don't cause refraction.

A convex mirror could cause parallel rays to REFLECT away from each other.
8 0
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