Monday

July 28, 2014

July 28, 2014

Total # Posts: 9

**Chemistry**

At temperatures above 930 C, reduces to form metallic lead . The byproduct of the reaction is . Calculate the amount of lead produced (in kg) when a reactor is charged with 953.0 kg of and 1430 kg of .

**Chemistry**

Lead chloride dissolves in water according to PbCl2(s)↔Pb2++2Cl−(aq) The solubility in pure water has been measured to be 4.44 g⋅L−1. Calculate the solubility product of lead chloride in pure water. Your answer should be in units of molarity raised to t...

**English**

yes they both mean the same just the first one, when it adds the other "some" beside the cheese its doesn't need to be there, because it makes the sentence to wordy. Yes to answer your question they both mean the same thing.

**Boolean algebra**

I have the same question. Someone on stack overflow gave me this answer(i dont know if its correct, because i dont know if we can use the ^: !(a + b + c) || (b * a ^ c) where ^ is xor. you can see my post go to site stackoverflow search-> Boolean algebra simplification to l...

**Physics help **

A 0.50-kg block rests on a horizontal, frictionless surface, it is pressed against a light spring having a spring constant of k = 800 N/m, with an initial compression of 2.0 cm. To what height h does the block rise when moving up the incline? what would be the h if the coeffic...

**Physics **

Three applied forces F1= 20N, F2= 40N and F3= 10N act on a crate with a mass of 2kg on an incline with θ = 30o, φ = 60o and μk = 0.2, find the acceleration

**physics**

m1=4kg and m2=2kg and angle is 42 degrees.if the mass m2 is moving down with 0.5 m/s^2 acceleration, find the coefficient of the friction

**Physics **

Three applied forces F1= 20N, F2= 40N and F3= 10N act on a crate with a mass of 2kg on an incline with θ = 30o, φ = 60o and μk = 0.2, find the acceleration

**math-algebrqa**

To describe violent storms, such as hurricanes and tornadoes, meteorologists use the formula D^3=830t^2, where D is the diameter (in km) of the storm and t is the time (in h) that the storm is expected to last. If a storm has a diameter of 25km , how long is it expected to last?

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