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mariarad [96]
3 years ago
5

Which of the following would be the best thermal conductor?

Physics
2 answers:
Elis [28]3 years ago
4 0
The best thermal conductor is b. metal
r-ruslan [8.4K]3 years ago
3 0

Answer: Option (b) is the correct answer.

Explanation:

A material through which energy can travel in the form of heat without any movement of material itself is known as a thermal conductor.

It is known that metals are good conductors of heat and electricity. Hence, they act as good thermal conductors.

Thus, we can conclude that out of the given options metal would be the best thermal conductor.

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What was the maximum speed of the car in your experiment?
MA_775_DIABLO [31]
The measurements used in the experiment is the amount of speed over time.

The measurement of speed is indicated along the “y” axis.

Upon viewing the graph, the highest point along the “y” axis shown is 25 m/s. This would be the maximum.

The maximum speed of the car would be 25 m/s.
7 0
3 years ago
The acceleration due to gravity on Mars is 3.60 m/s2. if this is measured at a distance of 3.4 x 10^6 m from the center of the p
densk [106]

As we know that acceleration due to gravity is given by

g = \frac{GM}{r^2}

here we know that

g = 3.60 m/s^2

M = ?

r = 3.4 \times 10^6 m

now we have

3.60 m/s^2 = \frac{(6.67 \times 10^{-11} Nm^2/kg^2)(M)}{(3.4 \times 10^6)^2m^2}

M = 6.24 \times 10^{23} kg

so above is the mass of Mars

8 0
3 years ago
What is the difference between unicellular and multicellular organisms?
bija089 [108]
Multicellular organisms<span> can be much larger and more complex. This is because the cells of the </span>organism<span> have specialised into many different types of cells such as nerve cells, blood cells, muscle cells all performing different functions.

</span><span>A unicellular organism, also known as a single-celled organism, is an organism that consists of only one cell, unlike a multicellular organism that consists of more than one cell.
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8 0
3 years ago
Calculate the pressure exerted by 11.1 moles of neon gas in a volume of 5.45 L at 25°C using (a) the ideal gas equation and (b)
Ilia_Sergeevich [38]

Answer:

49.82414 atm

50.74675 atm

Explanation:

P = Pressure

V = Volume = 5.45 L

R = Gas constant = 0.08205 L atm/mol K

T = Temperature = 25°C

a = 0.211 atm L²/mol²

b = 0.0171 atm L²/mol²

From ideal gas law we have

PV=nRT\\\Rightarrow P=\dfrac{nRT}{V}\\\Rightarrow P=\dfrac{11.1\times 0.08205(273.15+25)}{5.45}\\\Rightarrow P=49.82414\ atm

The pressure is 49.82414 atm

From Van der Waals equation we have

\left(P+\frac{an^2}{V^2}\right)\left(v-nb\right)=nRT\\\Rightarrow P=\dfrac{nRT}{V-nb}-\dfrac{an^2}{V^2}\\\Rightarrow P=\dfrac{11.1\times 0.08205\times (273.15+25)}{5.45-(11.1\times 0.0171)}-\dfrac{0.211\times 11.1^2}{5.45^2}\\\Rightarrow P=50.74675\ atm

The pressure is 50.74675 atm

3 0
3 years ago
How does heat conduction work
Musya8 [376]
Heat energy can move through a substance by conduction. Metals are good conductors of heat, but non-metals and gases are usually poor conductors of heat. Poor conductors of heat are called insulators. Heat energy is conducted from the hot end of an object to the cold end.
4 0
4 years ago
Read 2 more answers
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