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Which of the following is not true?
A) The pressure of a fluid increases with depth.
B) The pressure of a fluid increases with the width of the container.
C) The pressure of a fluid acts in all directions.
D) The pressure of a fluid depends on its density.
What is the viscous drag acting on a sphere with a diameter of 16.2 mm falling through water at 2.3 ms-1? Take the viscosity of the water to be 1.1 x 10-3 Nsm-2.
A 3.9 x 10-4 N
B 7.7 x 10-4 N
C 0.39 N
D 0.77 N
The volume of water (ρ = 1000 kgm-3) that would need to be displaced to keep a person of mass 60 kg afloat on a lake on the moon Europa is:
A 0.06 m3
B 0.589 m3
C 5.89 m3
D There is not enough information in the question.
Atmospheric pressure at sea level is 101 kPa and the density of sea water is 1020 kgm-3, therefore the total pressure 42 m underwater is:
A 420 kPa
B 521 kPa
C 4327 MPa
D 144 kPa
what is the electric flux passing through a Gaussian surface that contains 2 protons and 1 electron?
Dry air can support a maximum electric field strength of about 10 x 10^6 V/m. The field creates enough ionization in the air to make the air a conductor. what is the the voltage between two parallel conducting separated by 2.5 cm of dry air
The temperature of an ideal gas remains constant while the absolute pressure changes from 100 kpa to 800 kpa. If initial volume is 100 liters, what is the final volume in liters
The temperature of an ideal gas remains constant while the absolute pressure changes from 100 kpa to 800 kpa. If initial volume is 100 liters, what is the final volume in liters
A certain gas at 101.32k Kpa and 16 C whose volume is 2.83 m3 are compressed into a storage vessel of 0.31 m3 capacity. Before admission, the storage vessel contained the gas at a pressure and temperature of 137.8 Kpa and 24 0C; after admission the pressure has increased to 1171.8 Kpa. What should be the final temperature of the gas in the vessel in Kelvin?
The temperature of an ideal gas remains constant while the absolute pressure changes from 100 kpa to 800 kpa. If initial volume is 100 liters, what is the final volume in liters?
