I need help with the formulas for the 10 column accounting worksheet using Excel IF function?

How do I convert 176 feet per second to miles per hour

A stationary billiard ball, with a mass of 0.17 kg, is struck by an identical ball moving at 4 m/s. After the collision, the second ball moves 60 degress to the left of its original direction. The stationary ball moves 30 degrees to the right of the moving ball's original direction. What is the...

A skateboard rolls 45.0 m down a hill that descends at an angle of 23.0 degrees with the horizontal. What are the horizontal and vertical components of the skateboard's displacement?

:eek! : a sample is made of 18g of C and 81.5g of H... the molecular mass of the compound is 104g/mole calc. the empirical formula... calc. the molecular formula OK.. so I got the moles, I think.:confused: . C= 18g X 1mole = 1.4987g 1 ...