Anyone good at Physics?

Question

A water hose 2.3 cm in diameter is used to fill a 13.8 L bucket. One liter is equal to 1000Cm^3. If it takes 2.34 min to fill the bucket, what is the speed at which the water leaves the hose? Answer in units of cm/s.

Answer 1

Um... I'm also good at spotting people too lazy to do their homework. If you had asked HOW to do it, I might have helped. But you don't want to learn, you just want the answers.

Heh. Nice one pawpaw!

Answer 2

1. Not much physics in this one. In fact it is not.
2. This is more of an engineering problem. Civil Engineering (although they hate to use
the metiric system, or not know it,) Could be a Hydraulics problems, could be a
Mechancial Engineering problem (though not a Fluid Dynamics problem) are the ones
who work with such more often than Physicists..
3. Best to ask a Civil, Mechanical or Industrial Engineer from overseas as they use the
metric system more than we do.
4. As for me, I am an Aeronautical Engineer and we one discipline we use is
Aerodynanics which is air which is a fluid of varying temperatures, presssures, and
dendities, coupled with velociity gradients somewhere in there. In that case, we use
the Wind Tunnel to check out the Mathematics.

Answer 3

Relatively easy. It doesn't make any difference what the diameter of the hose. It takes 2.34 min, or 140.4 seconds to fill the 13.8L bucket. 13.8x1000=13800.0 13800.0/140.4=98.29059829 cm/s. Rounded off is 98.3 cubic centimeters/second or 0.0983 cubic meters/second.

Answer 4

u have volume and radius (1.15) of a cylinder. But you don't know the height. height=V/pi x r^2
height=3321.5cm

now u have distance and time
v=d/t
v=25.5cm/s

Careful, the diameter DOES matter. Cubic centimeters per second is not the same as centimeters per second. Using the information correctly can tell you how fast the water was moving IN the hose.

Hope this helps you.