Can someone please help me with this problem?
1) A water hose 1.84cm in diameter is used to fill a 22.1 L bucket.
One liter is equal to 1000 cm ^3. If it takes 1.41 minutes to fill the bucket, what is the speed at which the water leaves the hose? answer in units of cm/s.
Thank you for any help!
2007-02-07 13:19:16 · 2 answers · asked by Cool_Tall_One 3 in Science & Mathematics ➔ Physics
1)
a) from known data, find fluid flow Q:
Q = 22.1 l/1.41 min = 15.674 l/min = 0.261 l/s = 261 cm³/s.
b) from the defining equation for Q, Q = Av, where A = ¼πd², solve for v:
v = Q/A = 261 cm³/s /2.66 cm² = 98.24 cm/s.
2007-02-07 13:50:50 · answer #1 · answered by Jicotillo 6 · 1⤊ 0⤋
well you said explain so i wont solve it for you. Basically, what you do is convert the volume of the bucket to cm^3. Then you convert the time it takes to fill the bucket to seconds. Then you divide the volume of the bucket by the time to get the volume of water per second. Then you find the area of the circle of the water hose using the given diameter. Finally, you divide the volume per second that you found and divide it by the area of the circle. I believe that should give you the answer in cm/s.
2007-02-07 13:35:00 · answer #2 · answered by CrxK20 2 · 0⤊ 0⤋