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Ksivusya [100]
3 years ago
8

PLEASE HELP WILL MARK BRAINLIEST

Physics
2 answers:
pav-90 [236]3 years ago
6 0

Answer:

To be honest. I think all three of them are hydrogen i know Deuterium and Tritium are so I decided to research about protium and it said its also hydrogen.

Explanation:

Protium Deuterium and Tritium are all isotopes of hydrogen

loris [4]3 years ago
4 0

Answer:

Protium

Explanation: Protium is an isotope of hydrogen that is composed of one proton and one electron. It is the most abundant form of hydrogen.

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The visible spectrum refers to the tiny portion of the electromagnetic spectrum that we ________.
marusya05 [52]

Answer:

are able to see/observe

Explanation:

Humans are not able to see most wavelengths in the universe--but there is a select range that is visible to our eyes. This (which is usually shown on an electromagnetic spectrum diagram/chart/depiction by a small portion of rainbow) is the visible light spectrum

3 0
2 years ago
A block of mass 10.0 kg is pulled to the right along a rough horizontal surface with a constant horizontal force of 20.0 N. The
Yakvenalex [24]

Answer:

the magnitude of acceleration will be 1.50m/s^2

Explanation:

To calculate your acceleration, you can use your formula that states that the net force on an object is equal to the mass of the object multiplied by the acceleration of the object. Fnet=ma

if you draw out this situation and label the forces you will have your vector towards the right with a magnitude of 20.0N and then your friction vector will be pointing to the left (in other words, in the negative direction) (opposing the direction of movement) with a magnitude of 5.00N, with the 10.0 kg box in the middle.

The net force will be calculated using F1+F2=Fnet where your F1=20.0N and F2= -5.00N (since it is towards the negative direction).

you will find that Fnet=15.0N

With that, plug in the values you know to calculate the acceleration of the block:

Fnet=ma

(15.0N)=(10.0kg)a    from her you can divide both sides by 10 to isolate a:

1.50=a  (and now make sure to label the units of your answer)

a=1.50m/s^2 (which is the typical unit for acceleration)

7 0
3 years ago
PLEASE HELP<br><br> TOPIC - CONVECTION
Alex777 [14]

Answer:

  1. Dry air burns out and gets warm
  2. It's smoke and smoke always rises
  3. Not ours
  4. It makes sure no air is inside bc air gets cold an freezes
6 0
3 years ago
You shine a LASER from the air into water. What happens to light?
GarryVolchara [31]
The answer is B! Hope this helps
5 0
3 years ago
The left hemisphere of the brain controls the right side of the body. Please select the best answer from the choices provided T
olga nikolaevna [1]

Answer:

True

Explanation:

The different sides control the opposite side of the human body

4 0
2 years ago
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