Friday

April 18, 2014

April 18, 2014

Total # Posts: 9

**pre cal**

Sin3x=3cos^2xsinx-sin^3x

**Chemistry**

What volume of a 6.0 M NaOH solution would you need to prepare 250.0 milliliters of a 3.0 M NaOH solution?

**Physics.**

A punter kicks a football at an angle of 45 degrees to the ground. The football has an initial velocity of 25 m/s, make a diagram and calculate: a) How long was the football in the air? b) How far does the football travel horizontally? c) What is the maximum height of the foot...

**Chemistry**

describe how you would prepare 250.0 mL of a .500 M solution of NaCl by using apparatus found in a chemistry lab.

**physics**

An elavater m=800kg has a maximum load of 8 people of 600kg. The elevatorgoes up to 10 stories = 30m at a costant speed of 4m/s. what is the average power output of the elevater motor if the elevater is fully loaded with its maximum weight? (neglect friction)

**Math**

How do you turn an improper fraction into a mixed number?

**Chem**

At 850 C, the equilibrium constant Kp for the reaction: C(s)+CO2(g) >< 2CO(g) has a value of 10.7. If the total pressure in the system at equilibrium is 1.000 atm, what is the partial pressure of carbon monoxide.

**First grade social studies**

my son is in first grade and has to do a project as the curator for the american symbols. I am looking for a reputable website and having difficulty sorting out which ones to use. Can anyone help?

**multiplying fraction**

what is 3/7 * 2/10= and 5/6*2/3= , 1/2*1/4=,4/5*3/5=,2/3*3/8=,1/7*5/9= (Broken Link Removed) 3*2 = 6 7*10 = 70 Answer to the first one is 6/70. Then you'll need to reduce the answer; divide both parts by two, and you'll have 3/35. Do the others the same way. =) need he...

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