Monday
December 9, 2013

Posts by richard

Total # Posts: 221

Physics hard... can't get it right
oo ok let me try that also can you tell me the distinction like when to use gas constant and boltzmann constant

Physics hard... can't get it right
strt(3 * k=8.31 * T=1365)/ m = 5.32*10^-26

Physics hard... can't get it right
A cylinder of compressed Oxygen is carried on a spacecraft headed for Mars. The compressed gas cylinder has a volume of 10,000 L and is filled to a pressure of 200 atm at 273 K. The maximum pressure the cylinder can hold is 1000 atm. The molar mass of Oxygen is 32 g/mol. Boltz...

Physics hard...
Young's Modulus (Y) 20 X 1010 N/m2 Shear Modulus (S) 8.1 X 1010 N/m2 Bulk Modulus (B) 16 X 1010 N/m2 The table to the above represents various properties of steel. You have steel wire 4.9 meters in length that stretches 0.16 cm when subjected to a force of 400 N. What woul...

physics
A cylinder of compressed Oxygen is carried on a spacecraft headed for Mars. The compressed gas cylinder has a volume of 10,000 L and is filled to a pressure of 200 atm at 273 K. The maximum pressure the cylinder can hold is 1000 atm. The molar mass of Oxygen is 32 g/mol. Boltz...

trig
Graph three periods of the function. (identify period and phase shift and intercepts) y = f(x) = √3/2 sin(2x) - 1/2 cos(2x) if you can't graph it can you at least get it into that simpler form which is graph able.

trig1 more question
it is always true that if -1 ≤ x ≤ 1 then cos(Arccos(x)) = x Give an example showing that Arccos(cos(x))= x need NOT be true for all x

Trigonometry
Find all solutions for the following equation in the interval 0 ≤ x <2pi 3cos(3x)=6 i got cos3x=2, don't know how to go further i think it would be no solution but just want to confirm.

physics
20meters

Government
How can the actions of urban elites help explain the Great Recession?

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