AC has an outside diameter of 250mm and CD has an outside diameter of 150mm. Both pipes have a wall thickness of 8mm. Torques are applied at B and C. Find the reactions at A and D. Gsteel= 77.2GPa, Gcopper = 44GPa.

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

Achlorine atom has 17 protons and 18 neutrons. what is its mass number? what is its atomic number?

You are standing on a boat. which of the following strategies will make the boat start moving? a. pushing the mast b. throwing some cargo out of the boat c. pushing the front ofthe boat d. pushing another passenger