Astone is tied to a string whirled in a circle at the same constant speed in two different ways. first, the circle is horizontal and the string is nearly parallel to the ground. next, the circle is vertical. in the vertical case the maximum tension in the string is 12.0% larger than the tension that exists when the circle is horizontal. determine the speed of the stone.

Which simple machine is not part of this compound machine? a. lever b. pulley c. inclined plane d. wheel and axle

Which fact supports the conclusion that there will be fewer farm managers in the future? a) a farmer manager’s duties vary by the type of farm. b) farm technology is replacing some administrative jobs c) farm managers often need experience but not education. d) administrative duties include budgeting and training staff.

Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average ocean temperatures rise. to get some idea of the size of this effect, calculate the change in length of a column of water 1.00 km high for a temperature increase of 1.00ºc. note that this calculation is only approximate because ocean warming is not uniform with depth. (answer in ×10^{-3} −3 m)