(a) If 140 kg of waterpasses through per second, what is the rate at which the w

Physics
Tutor: None Selected Time limit: 1 Day

Water drives a waterwheel (or turbine) of radius R =3.0 m as shown in Fig. 11-33. The water enters at a speedv1 = 7.0 m/s andexits from the waterwheel at a speed v2 = 3.8m/s.

(a) If 85 kg of waterpasses through per second, what is the rate at which the waterdelivers angular momentum to the waterwheel?
 kgm2/s2
(b) What is the torque the water applies to the waterwheel?
 mN
(c) If the water causes the waterwheel to make one revolution every5.5 s, how much power is delivered to the wheel?
 W

Apr 30th, 2015

a)mass of water=85 kg

   Loss in the velocity of water=7-3.8=3.2 m/s

   Radius of waterwheel =3 m

Rate of change of angular momentum=mvr/t=85×3×3.2=817 kgm2/s2


b)rate of change of angular momentum =torque=817Nm



c)power=817/5.5=148.54 j/s

Apr 30th, 2015

Studypool's Notebank makes it easy to buy and sell old notes, study guides, reviews, etc.
Click to visit
The Notebank
...
Apr 30th, 2015
...
Apr 30th, 2015
Mar 26th, 2017
check_circle
Mark as Final Answer
check_circle
Unmark as Final Answer
check_circle
Final Answer

Secure Information

Content will be erased after question is completed.

check_circle
Final Answer