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kakasveta [241]
3 years ago
7

It would be really helpful if u help me solving this question. PLEASE!!!

Physics
1 answer:
sweet [91]3 years ago
7 0

Answer: The students will determine the two fixed points of the thermometer:

Lower fixed point = 0 degree Celsius

Upper fixed point = 100 degree Celsius

Then divide the thermometer with equal intervals

The room temperature will be the point at which the themometric substance remains constant when rising from ice point.

Explanation:

Apparatus available:

Unmarked thermometer

250 cm3 glass beaker

crushed ice 

water

heatproof mat 

clamp, boss and stand

meter rule

Added apparatus

Bunsen burner

Stirrer

Method

The students will determine the two fixed points of the thermometer:

Lower fixed point = 0 degree Celsius

Upper fixed point = 100 degree Celsius

Then divide the thermometer with equal intervals

Procedures

Set up the apparatus of illustrated in the attached figure.

Immerse the unmarked thermometer into the ice in the beaker.

When the level indicated by the thermometric substance remains steady after some time, a mark will be made at that point. This mark will corresponds to the ice point (lower fixed point) and is assigned the value of 0 °C.

You may add little water and continue to stir gently.

The themometric substance will start to rise and stop when it reaches room temperature. Mark the point but do not assign any value

Place the beaker on bunsen burner and boil the water. The themometric substance will continue to rise and remain constant at upper fixed point

This mark will corresponds to the steam point (upper fixed point) and is assigned the value of 100 °C.

Divide between the lower fixed point and upper fixed point into equal intervals. Then you can see the value of room temperature.

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Potential energy depends on height above some reference level,
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What that means is:  You have to lift it / do work on it / give it more
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_____________________________________

Regarding the other choices:

-- Kinetic energy is scalar ... Yes.  So is potential energy.

-- Kinetic energy increases with height ...
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-- Kinetic energy depends on position ...
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What is the total amount of energy absorbed by the substance as it completely changes from a solid at 40°C to a gas at 200°C? A-
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If you were to separate all of the electrons and protons in 1.00 g (0.001 kg) of matter, you’d have about 96,000 C of positive c
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Answer:

force = 82.94 × 10^{18}  N

Explanation:

given data

positive charge q1 = 96,000 C

negative charge q2 = -96,000 C

distance r = 1 m

solution

we know here that force between two charge that is express as

force = \frac{K \ |q1\times q2|}{r^2}    ......................1

put here value and we will get forces between them  

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