Reference no: EM132600010

A 7 cm x 7 cm x 7 cm wooden block floats in a fluid with a density of 1.2 g/cm3 and is 64% submerged. What is the density of the block in g/cm3 ?

A 152 kg crate is hanging from two cables. One of the cables pulls left and up at a 43 degree angle measured from the horizontal and the other pulls right and up at a 64 degree angle measured from the horizontal. Find the tension in the cable that pulls right and up.

A 122 kg crate is hanging from two cables. One of the cables pulls left and up at a 64 degree angle measured from the horizontal and the other pulls right and up at a 37 degree angle measured from the horizontal. Find the tension in the cable that pulls right and up.

A pipe at ground level supplies a building with water moving at 2.7 m/s. The pipe then rises 80 meters to the top of the building and reduces in diameter such that the water flows at 9.0 with a pressure of 159000. Find the necessary pressure at the bottom to push the water up to the top.

A 10 meter long lever is used to move a large rock. You push down on one end of the lever and the rock pushes down on the other end. and there is a pivot point on the ground that pushes up on the lever 0.6 meters from the rock. Find how much force it would take to move a rock with a mass of 213 kg.