This is about method of taking inside measurement with a tape.
<u><em>Option A is the correct answer.</em></u>
- Inside measurement is usually taken with the aid of an inside micrometer. This will give us an exact measurement. This is because when making use of an inside micrometer for inside measurement, the total length of the inside micrometer is equal to the overall length of whatever is being measured.
- We have seen how the inside micrometer is used whereby the entire body is also included in whatever is being measured. Applying this same concept to using a tape, we can simply say that we will add the tape length to the measuring case to get the inside measurement.
- From the definitions and comparisons above, we can see that we will have to add the length of the tape measure case when taking inside measurements and other options aside Option A are not correct.
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The heat transfer which is in steady state, the heat transfer rate to the wall is equal to the wall.
<u>Explanation:</u>
- The convection transfer of heat to the wall is
- Here,
is the temperature of solid surface, 
is the temperature of moving fluid stream which is adjacent of solid surface, h is the heat transfer coefficient. - The coefficient of convection heat transfers outer surface contains 3 times to the inner surface which experience smaller drop of temperature for 3 times that compares to inner surface.
- Hence, the temperatures outer surface get close to the surroundings of air temperature.
The time constant to reach full charge in an RL circuit is 0.05 ms.
Explanation:
To find the time constant,
The time constant for an RL circuit is defined by τ = L/R.
The given data is
L= 5 H
R= 100 ohms
by using the formula,
τ = L/R
= 5/100
= 0.05 ms
τ = 0.05 ms
Thus, the time constant to reach full charge in an RL circuit is 0.05 ms.
Answer
C02 cartridges are compressed.
Explanation:
The C02 Cartridge will be used to power our dragsters by the compression inside of the bottle. Since C02 is a compressed gas inside of a small container, The pressure when released my provide enough force to move the dragster at high speeds. An example of this would be like an air soft gun. some air soft guns are used by small C02 Cartridges, which let out a strong burst of compressed C02, which fires the projectiles at very high speeds.
