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4 years ago

IN THIS FORMULA FOR WATER WHAT DOES THE SUBSCRIPT 2 INDICATE

1 answer:

7 0

The chemical formular for water is H2O.
The H aspect of the formula stands for hydrogen gas and the subscript 2 which is attached to the H symbol signifies that two atoms of hydrogen are joined together, that is two atom of hydrogen are present.
The chemical formula of water indicates that, two atom of hydrogen react with one atom of oxygen to form one molecule of water.
In chemical formulae, subscripts are normally used to indicate the number of atoms that are present in a molecule.

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Consider the following hypotheses: 12:V ) >(x)) Use rules of inference to prove that the following conclusion follows from th

Igoryamba

Answer: See attachment below

Explanation:

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3 years ago

Which diagram represents deposition? A solid → gas B gas → solid C liquid → solid D liquid → gas

ANEK [815]

Answer:

I believe its Gas to Solid :)

Explanation:

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3 years ago

¿Una persona de 60 corriendo a 4 m/s, tiene más energía cinética que un proyectil de 10 gramos a 300 m/s?

Svet_ta [14]

Explanation:

The question says that "Does a 60 kg person running at 4 m/s have more kinetic energy than a 10 gram projectile at 300 m/s ? "

Speed of a person is 4 m/s

Mass of a person is 60 kg

Kinetic energy of a person is : $K=\dfrac{1}{2}mv^2$

So,

$K=\dfrac{1}{2}\times 60\times 4^2\\\\K=480\ J$

Mass of a projectile is 10 grams or 0.01 kg

Speed of a projectile is 300 m/s

Kinetic energy of a projectile is :

$K=\dfrac{1}{2}mv^2$

$K=\dfrac{1}{2}\times 0.01\times (300)^2\\\\K=450\ J$

So, it is clear that the kinetic energy of a person is more than that of the kinetic energy of a projectile.

8 0

3 years ago

A scooter has a mass of 250 kg. A constant force is exerted on it for 60.0 s. During the time the force is exerted, the scooter

storchak [24]

Answer:

5500

Explanation:

I cant explain it but when i asked my teacher thats what he told me

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3 years ago

in a certain experiment, a radio transmitter emits sinusoidal electromagnetic waves of frequency 105.0 mhz in opposite direction

Romashka [77]

As a result, the hollow is 10.90 meters long and the distance between the nodal planes is 1.36 meters.

<h3>Explain electromagnetic waves.</h3>

The oscillations between an electric field and a magnetic field produce waves known as electromagnetic waves, or EM waves.

By definition, we understand that the frequency equals,

f = c/λ

where,

λ = wavelength

c= Speed of light

λ = 2L / n

While the wavelength is equal to,

Where,

L = Length

n = Number of antinodes/nodes

PART A) We know that the first component's wavelength is 110 MHz, so

λ = c/ f

λ = 3*10^8 / 11*10^6

λ = 1.36m

Therefore the distance between the nodal planes is 1.36m

PART B) For this part we need to find the Length through the number of nodes (8) and the wavelength, that is,

λ` = 2l /n

L = 8*2.72/ 2

L = 10.90m

Therefore the length of the cavity is 10.90m.

To know more about electromagnetic waves visit:-

brainly.com/question/3101711

#SPJ4

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1 year ago