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A large storage tank, open to the atmosphere at the top and filled with water, develops a small hole in its side at a point 18.9 m below the water level. The rate of flow from the leak is 2.60 10-3 m3/min.
(a) Determine the speed at which the water leaves the hole.
________ m/s
(b) Determine the diameter of the hole.
________ mm
A 12kg box is decelerated from an initial speed of 20m/s to rest in a distance of 13m while traveling up a 42 degree incline. What was the net work done on the box by friction
A great amount of water vapor changes phase to become water in the clouds that form a thunderstorm. Does this process release or absorb thermal energy
A 47.7 kg girl is standing on a 127 kg plank. The plank, originally at rest, is free to slide on a frozen lake, which is a flat, frictionless surface. What is her velocity relative to the ice surface
Consider the following fission reaction (1n)+235U --> 90Kr + 142Ba +4(1n) +6 \(\gamma\) where 90Kr and 142Ba are the initial fission fragments. What is the total energy eventually emitted
A little cat, Bella, walks in a straight line, which we shall call the x axis, with positive direction to the right. As an observant scientist, you make measurements of her motion and construct a graph of the little feline's velocity as a function..
Three parallel wire 5 m long carry each 24 A of current in the same direction. Find the magnitude force on each wire
An airplane is flying through a thundercloud at a height of 2400 m. (Flying at this height is very dangerous because of updrafts, turbulence, and the possibility of electric discharge.)
A sprinkler mounted on the ground send out a jet of water at 30 degrees angle to horizontal. How far does the water travel before it hits the ground
When you push a 1.95kg book resting on a tabletop it takes 2.50N to start the book sliding. Once it is sliding, though, it takes only 1.50N to keep the book moving with constant speed. What are the coefficients of static and kinetic friction betwe..
A 61 kg rock with a volume of 33 L is completely submerged in water. The density of water is 1 kg/L. What mass of water is displaced by the rock
A 3.40-kg aluminum ball has an apparent mass of 2.10 kg when submerged in a particular liquid. Calculate the density of the fluid
A heat engine operates in a Carnot cycle between 90.0°C and 360°C. It absorbs 20,400 J of energy per cycle from the hot reservoir. How much energy does it expel in each cycle by heat
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