Friday
December 19, 2014

Posts by kwame


Total # Posts: 9

science
an elephant of mass 500kg stands with all four feet on the ground. each foot has an area of 0.08m^2.calculate the pressure exerted on the ground.[g=10m/s^2]
October 17, 2014

business finance
Sam had $5000 cash for a down payment on a car. He took out a loan at 9% per annum, compounded monthly to pay for the rest. His monthly payments will be $445.20 for the next 3 years. What is the price of the car?
February 23, 2014

Chemistry
Elemental analysis is performed on an organic liquid with a fishy odor. Vaporization of 260.0 mg of the compound in a 110 mL bulb at 100°C gives a pressure of 410.0 torr. What is the molar mass of this compound? whats the formula for this and do I need to convert anything?
November 1, 2012

Chemistry-Explanation Please
Oxygen gas can be generated by heating KClO3 in the presence of some MnO2. 2KClO3 → 2KCl + 3O2 If all the KClO3 in a mixture containing 1.00 g KClO3 and 0.25 g MnO2 is decomposed, how many liters of O2 gas will be generated at T = 24.0°C and P = 755.6 torr?
November 1, 2012

math
1. A teacher has 10 boys and 12 girls in her grade school class. In how many ways can she select 8 of the children to be in a play if she must select 5 boys and 3 girls. 2. The manager of the various displays in the Acme Fine Clothing Emporium has a window which will hold 4 ...
July 29, 2012

Statistics
In 1972, there were 3.4 trillion cigarettes purchased worldwide, and in 1984, there were 4.3 trillion cigarettes purchased worldwide(in trillions) in the year x, where x=0 represents the year 1972. (a) Which of the following linear equations could be used to predict the number...
May 12, 2012

physics
Approximately what force, FM, must the extensor muscle in the upper arm exert on the lower arm to hold a 7.9 kg shot put (Fig. 9-66)? Assume the lower arm has a mass of 2.8 kg and its CG is 11.2 cm from the pivot point.
November 16, 2009

algebra
to rent a dvd a customer must pay $3.99 plus $0.99 for every day that it is late, write a rule in function notation for this situation? f(x)=3.99+0.99x
July 4, 2007

Social studies
where do all human comes from? from the mother stomach Most scientists believe that humans originated in Africa.
February 8, 2007

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