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(a) kerosene of relative density 0.8 is poured into one arm of the U-tube until the height of Mercury in that arm is reduced by 1.5cm. calculate the height of kerosene
(b) Water is now poured into the other arm of the U-tube until the levels of Mercury in both arms are again the same. Calculate the height of the water column. (Density of water = 1gcm^-3
A baseball is thrown straight upward with a speed of 30 m/s. How long will it rise?
(a) kerosene of relative density 0.8 is poured into one arm of the U-tube until the height of Mercury in that arm is reduced by 1.5cm. calculate the height of kerosene
(b) Water is now poured into the other arm of the U-tube until the levels of Mercury in both arms are again the same. Calculate the height of the water column. (Density of water = 1gcm^-3
(a) kerosene of relative density 0.8 is poured into one arm of the U-tube until the height of Mercury in that arm is reduced by 1.5cm. calculate the height of kerosene
(b) Water is now poured into the other arm of the U-tube until the levels of Mercury in both arms are again the same. Calculate the height of the water column. (Density of water = 1gcm^-3
A girl with a mass of 65.5 kg is wearing high heeled shoes and standing balanced on one foot.The heel is circular with a diameter of 0.8 cm .What is the pressure exerted by the heel on the horizontal floor ? g=9.8m/s^2
A gymnasium is 16 m high. By what percent is the air pressure at the floor greater than the air pressure at the ceiling? Assume that pressure at the bottom is 1 atm and the density of air stays constant. The density of air is 1.29 kg/m3.
dirty clothes and pressing a start button, the tub of the washer can reach its
operating speed with an average angular acceleration of 4.15 rad s-2. Later at the
spin-dry mode, it is starting from rest and reaching an angular speed of 6.0 revolution per second in 7.0 s.
a) How long does it take for the clothes to come up to the speed during the
washing mode?
b) Now the tub of the washer goes into it spin-dry cycle. At this point, the person
doing the laundry opens the lid and a safety switch turns off the washer. The tub
slows to rest in 13.0 s. How many revolutions does the tub turn during this
20.0 s interval?
A rock weighs 100 kg sitting on top of a hill 20 m high . What is the potential energy of the rock
a ball is thrown upward with an initial velocity of 20 m/s from the rooftop of a 16 meter tall building and falls freely until it hits the ground. what is the ball's final velocity just before hitting the ground
A. 29 cm B. 0.0025 km C. 4.5 × 10-
#340153 on Dec 2023