Answer:
k = 3.41 N/m
Explanation:
The time period is given as:

Another formula for the time period of the spring-mass system is:

<u>k = 3.41 N/m</u>
<span>The pressure exerted by a gas on its container is directly proportional to the absolute temperature of the gas.
This result is known as "Gay-Lussac law", which states that for an ideal gas with fixed volume (like the gas in the container), the ratio between pressure and absolute temperature of the gas is constant:
</span>

<span>where p is the pressure of the gas and T its absolute temperature.</span>
Answer:
radiation, then convection
Answer:
a barometer is used to measure atmospheric pressure, and a manometer is used to measure gauge pressure.
Explanation:
A barometer measures air pressure at any locality with sea level as the reference.
However, a manometer is used to measure all pressures especially gauge pressures. Thus, if the aim is to measure the pressure at any point below a fluid surface, a barometer is used to determine the air pressure. The manometer may now be used to determine the gauge pressure
The algebraic sum of these two values gives the absolute pressure.