When the leveling bulb is higher than the water level, the pressure in the system is greater than atmospheric pressure. Question 8 options: True False

Consider an ordinary, helium-filled party balloon with a volume of 2.2 ft3. the lifting force on the balloon due to the outside air is the net resultant of the pressure distribution exerted on the exterior surface of the balloon. using this fact, we can derive archimedes’ principle, namely that the upward force on the balloon is equal to the weight of the air displaced by the balloon. assuming that the balloon is at sea level, where the air density is 0.002377 slug/ft3, calculate the maximum weight that can be lifted by the balloon. note: the molecular weight of air is 28.8 and that of helium is 4.

What is the coefficient of kinetic friction μk between the block and the tabletop?

Ascientist wants to test ways to reduce pollution in lake . what is the bestway of doing this