How do I calculate the mass of the balloon while it is stationary. I guess it would be in equilibrium with the force of gravity and the bouyant force that oppose each other.
Which one of the following statements concerning a completely enclosed fluid is true?
a)Any change in the applied pressure of the fluid produces a change in pressure that depends on direction.
b)The pressure at all points within the fliod is independent of any pressure applied to it.
c)Any...
Heat is supplised to a sample of a monatomic ideal gas at 40C. It is observed that the gas expands until its volume is doubled and the pressure drops to half of its original value. What is the final temperature of the gas? How do you solve? pv=nRt R and n are constant so do you have...
Which one of the following statements best explains why gases are not comercially sold by volume?
a)Gas volume is neligible
b)Gas volume is difficult to measure
c)Gas volume depends on the type of gas
d)Gases have comparitviely low densities
e)Gas volume depends on temperature and...
A suitcase (mass m=16kg) is resting on the floor of an elevator. The part of the suitcase in contact with the floor measures 0.50m by 0.15m. The elevator is moving upward, the magnitude of its acceleration being 1.5m/s^2. What pressure (in excess of atmospheric pressure) is applied to the...
The hot reservoir for a Carnot engine has a temperature of 890K, while the cold reservoir has a temperature of 670K. The heat input for this engine is 4800J. The 670K reservoir also serves as the hot reservoir for a second Carnot engine. This second engine uses the rejected heat of the first...
A lighter than air balloon and its load of passengers and ballast are floating stationary above the eart. Ballast is the wieght that can be dropped overboard to make the balloon rise. The radius of this balloon is 6.25m. Assuming a onstant value of 1.29 kg/m^3 for the density of air...