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Keith_Richards [23]
3 years ago
7

When the temperature of a gas decreases at constant volume, its a. pressure increases. b. mass increases. c. pressure decreases.

d. particles move faster.
Physics
1 answer:
EastWind [94]3 years ago
5 0

Answer:

a. pressure increases

b. particles move faster

Explanation:

When the temperature of a gas at constant volume increases, it means the kinetic energy of the gas particles will also increase and this means that the particles will move at a faster speed.

Also, since the particles are moving faster, it means they will be hitting the walls of the container carrying the gas at a faster rate.

And the higher the force, the higher the Pressure.

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bekas [8.4K]

Answer:

f = 8.89 cm

Explanation:

As we know that Far sighted person has near point shifted to 80 cm distance

so he is able to see the object 80 cm

now the distance of lens from eye is 2 cm

and the person want to see the objects at distance 10 cm

so here the image distance from lens is 80 cm and the object distance from lens is 8 cm

now from lens formula we have

\frac{1}{d_i} + \frac{1}{d_0} = \frac{1}{f}

-\frac{1}{80} + \frac{1}{8} = \frac{1}{f}

f = 8.89 cm

3 0
3 years ago
A 0.5-kilogram ball is thrown vertically upward with an initial kinetic energy of 25 joules. Ap-proximately how high will the ba
tatuchka [14]
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mgh=25J
h=25J/(0.5kg x 9.81m/s^2) = 5.097m
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4 0
3 years ago
A 1.0-kg block and a 2.0-kg block are pressed together on a horizontal frictionless surface with a compressed very light spring
egoroff_w [7]

Answer:

4. both blocks will both have the same amount of kinetic energy.

Explanation:

When the blocks are released free from the compression force, the spring exerts equal and opposite force on each block but the block with heavier (double) mass will attain slower ( half ) speed as compared to the lighter block according to the law of inertia. This works in synchronization to energy conservation.

Spring force is given as:

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<u>We know kinetic energy is given by:</u>

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Answer:

increase

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3 years ago
Which of the following would reduce the resistance of a metal wire?
MAVERICK [17]
I think A. increasing thickness, i hope i help :)

3 0
3 years ago
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