1.) An open cylindrical tank having a radius of 0.30 m and a height of 1.20 m is filled with water at depth of 0.90 m. How fast will it be rotated about its vertical axis if half of its volume is spilled out? Unit of the correct answer: rpm
CHOICES
a.) 138. 744
b.) 178. 344
c.) 173.844
d.) 148.474
2.) an open cylindrical vessel having a height equal to its diameter is half filled with water and revolved about its own vertical axis with a constant angular speed of 130 rpm. find its minimum diameter so that there can be no liquid spilled. (Unit of the correct answer : meter)
CHOICES
a.) 2.43
b.) 0.423
c.) 0.342
d.) 0.234