Instructions: Answer the questions in the space provided. 1.
Determine the unknown values for time per revolution and rotational speed (in rev/s and
RPM) from the given value.
a.
t(s) = 4s
b.
t(s) =
w (rev/s) =
w (rev/s) = 2 rev/s
W (RPM) =
w (RPM) =
C.
t(s) =
d.
t(s) = 0.125 s
w (rev/s) =
m (rev/s) =
6 (RPM) = 15 RPM
6 (RPM) =

In a voltaic cell, electrons flow from the (positive/negative) to the (positive/negative) terminal.

The arrival of in the early days of europa’s existence could have formed its ocean. it is likely that the water experienced similar to earth. it is also possible that this water is retained beneath europa’s surface and in its atmosphere due to europa’s . 1.) a. precipitation b. water vapor c. icy debris 2.) a. gravitational compression b. biochemical cycling c. radiogenic heating 3.) a, gravity b. magnetic field c. heat energy for plato

Amerry-go-round of radius r, shown in the figure, is rotating at constant angular speed. the friction in its bearings is so small that it can be ignored. a sandbag of mass m is dropped onto the merry-go-round, at a position designated by r. the sandbag does not slip or roll upon contact with the merry-go-round. how would you rank the following different combinations of m and r on the basis of the angular speed of the merry-go-round after the sandbag "sticks" to the merry-go-round from largest to smallest. a) m = 10kg, r = 0.25r b) m = 20kg, r = 0.25r c) m = 10kg, r = 0.50r d) m = 10kg, r = 1.0r e) m = 15kg, r = 0.75r f) m = 40kg, r = 0.25r