Your town is installing a fountain in the main square. If the water is to rise 16 m (52.5 feet) above the fountain, how much pressure must the water have as it moves slowly toward the nozzle that sprays it up into the air? Assume atmospheric pressure equal to 100,000 Pa.
April 10, 2014
A 7 kg purse is dropped from the top of the Leaning Tower of Pisa and falls 53 m before reaching the ground with a speed of 17 m/s. What was the average force of air resistance? F =
February 23, 2014
BLT produces plastic that is used for injection molding applications such as gears for small motors. In 2012, the first year of operations, BLT produced 6,492 tons of plastic and sold 5,410 tons. In 2013, the production and sales results were exactly reversed. In each year, ...
October 3, 2012
Principles of Biology 1
A team of students hypothesizes that the amount of alcohol produced in fermentation depends on the amount of sugar supplied to yeast. They want to use 5, 10, 15, 20, 25 and 30% sugar solutions. They propose to run each experiment at 40 degrees celcius with 5 mL of yeast. What ...
September 15, 2012
One 250mg tablet is made up of chemical A , B, ,C in a ratio 3:2:5. The Pharmacist Has 60mg of chemical B left. How much of Chemical A and C does she need if she uses 60mg of B?
February 9, 2012
1) If C = 1000 + 7/8[GDP-1000], I = 700 and G = 1000 and the economy is currently in equilibrium at 400 below full employment GDP, the correct fiscal policy would be to increase G by? 2) If C = 500 + 3/4[GDP- 100], I = 300, G = 400, Xn =- 10 and full employment GDP is 210 less...
April 3, 2009
Solve x square pluse 5x subtracting by 6 equals zero? X^2 + 5x - 6 = 0 Solve by factoring. 3 and 2 will do it. heres the right answer.... (x-1)(x+6)=0 x=1 x=-6 Let's see if that is the right answer. The first number is the product of the first two numbers; x*x = x^2. That ...
October 17, 2006