Fall 2020 Mechanics, Heat and Sound - Collins M (CollinsMPHY1) / Exam_6M 20 Administer
6. 10 pts possible
A large tank filled with water has two holes
in the bottom, one with twice the radius of the
other. In steady flow the speed of the water
leaving the larger hole is the speed of
the water leaving the smaller.
1. the same as
2. half
3. four times
4. one fourth
5. twice

Three different objects, all with different masses, are initially at rest at the bottom of a set of steps. each step is of uniform height . the mass of each object is a multiple of the base mass : object 1 has mass 4..00m , object 2 has mass 1..96m , and object 3 has mass . when the objects are at the bottom of the steps, define the total gravitational potential energy of the three-object system to be zero. if the objects are then relocated as shown, what is the new total potential energy of the system? each answer requires the numerical coefficient to an algebraic expression. each algebraic expression is given using some combination of the variables , , and , where is the acceleration due to gravity. enter only the numerical coefficient. (example: if the answer is 1..23mgd , just enter 1.23)