A 10 kg solid cylinder (I = 1/2 MR2) with a radius of 30.0 cm is rotating about a vertical axis through its center. If the angular momentum is increasing at the rate of 25.0 kg m2/s2, then what is the angular acceleration? [Hint: L=Iω; ΔL=IΔω; ΔLΔt=IΔωΔt; ΔLΔt=Iα]

When you push a door open, where should you push to make it open the easiest?

What happens to the vapor pressure of a substance when its surface area is increased at constant temperature?

Which resonance structure is likely to contribute most to the correct structure of (OCN- )?

A mixture of 10.0 g of Ne and 10.0 g Ar have a total pressure of 1.60 atm. What is the partial pressure of Ar? (Given: Xa =nantotal{“version”:”1.1″,”math”:”Xa =nantotal”}; Pa = Xa.Ptotal ; Molar masses in g/mol: Ne (20.0), Ar (40.0)

Acme Company is a retailer. Acme’s selling and administrative expenses are split evenly (50-50) between variable costs and fixed costs. To report the results for the current year, Acme prepares both a GAAP format and a contribution margin format income statement, as follows: Which of the following statements regarding the amounts reported in the two types of income statements is true?

Which of the following regulates salt?

Which of the following regulates calcium levels?

Which organ produce male sex hormones? 

Which of the following is released when blood glucose level is too high?