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3 years ago

Heat is conducted when one atom or molecule collides with and

Physics

2 answers:

svet-max [94.6K]3 years ago

6 0

A. transfers energy to another atom or molecule.

frosja888 [35]3 years ago

5 0

The correct answer is A. Transfers energy to another atom or molecule.

Explanation:

In physics, heat is produced by the inner energy of a substance or the transfer of heat from one body to another. In terms of inner energy, this is the result of the collision between particles or atoms. This can be explained as every time a particle or atom collides with others part of the energy of the atom is transferred, and this leads to heat. According to this, heat is conducted when one atom or molecule collied with and transfers energy to another atom or molecule.

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Rus_ich [418]

Answer:

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3 years ago

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What is NOT an example of Reflection

raketka [301]

Refraction as in a pencil going into water

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Which best describes the relationship between humidity and air pressure?

spayn [35]

Answer:<span>Humid air is lighter, so it has lower pressure.

The reason is the molecules of water are H2O, whose molar mass is 18 g/mol.

These molecules displaces molecules of N2 and O2, whose molar masses are:

N2: 2*14g/mol = 28 g/mol, and
O2: 2*16g/mol = 32 g/mol.

Then molecules of 28g/mol and 32 g/mol are being replaced with molecules of 18g/mol, leading to a lower weight of the same volume of air, which results in lower pressure.
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3 years ago

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How many drops of water are in a 1.0 L bottle? (Hint: Start by estimating the diameter of a drop of water.)

o-na [289]

Answer:

N = 2000 drops approx with 1 cm diameter each

Explanation:

Let the diameter of one drop is 1 cm

so volume of one drop is given by

$V = \frac{1}{6}\pi d^3$

now we have

$V = \frac{1}{6}\pi(0.01)^3$

$V = 0.53 \times 10^{-6} m^3$

now in 1L of liquid let say N drops are there

so we have

$1L = 10^{-3} m^3$

now we have

$N = \frac{10^{-3}}{0.53 \times 10^{-6}}$

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IgorLugansk [536]

Answer: $^{50}_{25}Mn\rightarrow ^{0}_1e+ ^{50}_{24}Cr$

The chromium nucleus will complete the reaction.

Explanation:

The given reaction is a type of radioactive nuclei decay:

Positron emission: It is a type of decay process, in which a proton gets converted to neutron and an electron neutrino. This is also known as $\beta ^+$ -decay. In this the mass number remains same.

$_A^Z\textrm{X}\rightarrow _{Z-1}^A\textrm{Y}+_{+1}^0e$

Now according to the given reaction:

$^{50}_{25}Mn\rightarrow ^{0}_1e+ ^{50}_{24}Cr$

The chromium nucleus will complete the reaction.

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3 years ago

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