A cylindrical iceberg of height H floats in sea water. The top of the iceberg is at height h above the surface of the water.
The density of ice is Pi and the density of sea water is Pw.
What is the height h of the iceberg above the sea water?
A.[1-(Pi/Pw)]×H B.[(Pi/Pw)-1]×H C.(Pw/Pi)×H D.(Pi/Pw)×H

The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage

The table below shows the acceleration of gravity on different bodies in the solar system. on which body would a 10 kg lamp has the most gravitational potential energy when lifted to a height of 2 m? a. earth b. mars c. neptune d. uranus

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 2 options: the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the cold balloon expands and rises. the warm balloon shrinks and sinks. the warm balloon expands and rises. the cold balloon shrinks and sinks.