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3 years ago

As the average kinetic energy of the particles in a gas increases, which of the following occurs?

Physics

2 answers:

Mila [183]3 years ago

5 0

The temperature increases

lara31 [8.8K]3 years ago

5 0

a The temperature of the gas increases.

b The temperature of the gas decreases.

c The number of particles increases.

d The number of particles decreases.

A is the correct answer

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A parallel-plate capacitor with plates of area 360 cm2 is charged to a potential difference V and is then disconnected from the

Softa [21]

Answer:

$Q=3.9825\times 10^{-9} C$

Explanation:

We are given that a parallel- plate capacitor is charged to a potential difference V and then disconnected from the voltage source.

1 m =100 cm

Surface area =S= $\frac{360}{10000}=0.036 m^2$

$\Delta d=0.8 cm=0.008 m$

$\Delta V=100 V$

We have to find the charge Q on the positive plates of the capacitor.

V=Initial voltage between plates

d=Initial distance between plates

Initial Capacitance of capacitor

$C=\frac{\epsilon_0 S}{d}$

Capacitance of capacitor after moving plates

$C_1=\frac{\epsilon_0 S}{(d+\Delta d)}$

$V=\frac{Q}{C}$

Potential difference between plates after moving

$V=\frac{Q}{C_1}$

$V+\Delta V=\frac{Q}{C_1}$

$\frac{Qd}{\epsilon_0S}+100=\frac{Q(d+\Delta d)}{\epsilon_0S}$

$\frac{Q(d+\Delta d)}{\epsilon_0 S}-\frac{Qd}{\epsilon_0S}=100$

$\frac{Q\Delta d}{\epsilon_0 S}=100$

$\epsilon_0=8.85\times 10^{-12}$

$Q=\frac{100\times 8.85\times 10^{-12}\times 0.036}{0.008}$

$Q=3.9825\times 10^{-9} C$

Hence, the charge on positive plate of capacitor= $Q=3.9825\times 10^{-9} C$

6 0

3 years ago

Which of the following explains why international travelers need to use special adapters when plugging a device designed to oper

Darina [25.2K]

Answer:

The answer is: The increased voltage causes an increase in power usage, and the device will over-heat.

Explanation:

First, we must consider the variables of the electrical system that will allow us to respond. In this case, power, current and voltage, which are related by

$P=VI$

Where P=Power, V=Voltage, I=Current.

In the equation it can be observed that power is directly proportional to the system voltage. Thus, if the voltage increases as in this case, the power will also increase, which overheats the device and can cause damage to it.

8 0

2 years ago

In order to design an experiment, you need a ____ about the scientific question you are trying to answer.

goldenfox [79]

In order to design an experiment, you need a hypothesis about the scientific question you are trying to answer.

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3 years ago

Read 2 more answers

Which vector is the sum of vectors a and ? b а O A. B. C.

seropon [69]

Answer:

i would say D.

Explanation:

5 0

3 years ago

You climb to the top of a tall water tower and drop a water balloon. As it drops, the balloon is experiencing energy changes. Wh

inysia [295]

The balloon’s potential energy was transformed to kinetic energy as it drops.

Before the balloon was drop it possessed potential energy but at the moment the balloon was dropped the potential energy it possessed was transformed into kinetic energy.

Hope this answer will be a good help for you.

4 0

2 years ago