A concrete column has a diameter of 360 and a length of 2.4 mm . If the density (mass//volume) of concrete is 2.45 Mg/m3Mg/m3, determine the weight of the column in pounds.

Suppose while hauling rocks, you accidentally drop one. it breaks apart in flat, planar sections. what type of rock did you just drop? 20 points

How will the system respond to a temperature increase?

The astronauts on the space shuttle flights experienced an acceleration of 29 m/s2 (about 3 "g's") during lift-off. what upward force must the astronaut's seat apply to the astronaut in order to cause this acceleration? assume the astronaut's mass is 70 kg, and compute this force when the acceleration is near the earth's surface so their weight equals latex: mg m g .