Tuesday
May 21, 2013

# Posts by richard

Total # Posts: 216

Physics
Having trouble determ the formulas for the follow problems. 2. If an automobile travels at 30 km/hr. for 2 hours, how far does it go? 60 km 3. At time = 0 an automobile already traveling at 30 km/hr. accelerates at 3m/s2 for 2 seconds. During these two seconds, how far does it...

physics
An object 7.25 cm high is placed 15.1 cm from a convex mirror of radius 55.2cm. (a) What is the image distance?

math
3/5 + 1/10=? i got 7/10 or 12/20, which one is correct?

music
2. What role did Totalitarianism play in the creation of music particularly in Germany and the Soviet Union during the twentieth-century? Which composers were most affected by totalitarianism? How did affect their lives?

reply to Q " Physics hard... can't get it right"
kk this is what i did V=strt(3*k=8.31*T=1365)/m=5.32*10^-26

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...

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