An open cylinder tank one meter in
diameter and 2.5m high is 3/5 full of
water. If the tank is rotated about its
vertical axis, what speed should it
have in rpm so that:
A. the water could just reach the rim of
the tank
a. 109.65 rpm c. 119.65 rpm
b. 129.65 rpm d. 219.65 rpm
B. the depth of water at the center is
zero.
a. 123.7 rpm c. 143.7 rpm
b. 133.7 rpm d. 153.7 rpm
C. there is no water at the bottom
with in 20cm from the vertical
axis.
a. 196 rpm c. 198 rpm
b. 169 rpm d. 189 rpm