Physics help

[BIG POPPA PUMP]

Can anybody help me with my physics homework?




1. If 3.00 m^3 of gas initially at standard temperature and pressure (STP) is placed under a pressure of 4.0 atm, the temperature of the gas rises to 311 K. What is the new volume? 1 atm = 101300 Pa

a) 3.17 m^3
b) 0.85 m^3
c) 0.03 m^3


2. Twelve molecules have the following speeds, given in units of km/s: 6, 2, 4, 6, 0, 4, 1, 8, 5, 3, 7 and 8. Calculate the RMS speed.

a) 54 km/s
b) 4.5 km/s
c) 5.2 km/s

3. Calculate the RMS speed of helium atoms near the surface of the Sun at a temperature of 6000 K.

a) 6100 m/s
b) 350 m/s
c) 12200 m/s


4. A mole of hydrogen (H2) gas is in equilibrium at a temperature of 300 K. What is the internal energy of the gas?

a) 6.21 x 10^-21 J
b) 3745 J
c) 7490 J


5. Using kinetic theory ideas, estimate the RMS speed of a protein of molecular mass 50000 u at temperature of 37 degC.
u = 1.66 x 10^-27 kg.


a) 2781 m/s
b) 4.3 m/s
c) 12 m/s


6. Which of the following is not a postulate underlying kinetic theory.

a) The particles in the gas are close together.
b) The gas is ideal.
c) The number of particles in the gas is large.



Any help would be very much appreciated.

 

[beez]

It'll cost you $30 an hour

 

[Scallop Industry Thug]

It puzzles me why your first port of call for physics homework is BigFooty.

It's like asking a bunch of monkeys to type out some post-modern poetry.

I have zero idea what anything in the OP says.

 

[scooterb]

Most of those questions are chemistry related?

 

[RooBuoy]

Most of those questions are chemistry related?

Nup, they're physics. They contain words like molecule and gas, but they're calculating speed and energy which is physics.

To OP, do your own homework.

 

[Hot Spenny]

The answer is C.

 

[red+black]

6 a)

 

[triplejdude]

All the physics help you'll ever need

 

[RU486]

Join Date December 2000, were you 8 when you joined?

 

[volcboy]

As a physics and chemistry teacher, I can tell you that those questions are definitely in the chemistry syllabus and not physics.

$40 an hour will get you the help you need

 

[crazyman27]

haha that elephant thing is gold, how many times have I felt like doing that in stupid physics tests!!

 

[Todd_Gack]

Why are they multiple choice? Just pick any random ones and you'll get 33%. Which is better than if you try to work them out

 

[coke_zero]

haha that elephant thing is gold, how many times have I felt like doing that in stupid physics tests!!

proberly none.

 

[blues4flag]

haha that elephant thing is gold, how many times have I felt like doing that in stupid physics tests!!

The responses they showed to some exam questions in an Eng lecture last year...some were absolutely hilarious.

 

[rdhopkins2]

Sorry no idea about your homework, but hopefully these help inspire you to greatness.

Good luck with the homework champ!

 

[Dagless]

sí, to the moon...

Seriously, whats the point in trying to get US to do YOUR homework?

Anyway some more stuff...

 

[Vonsche]

 

[blues4flag]

61%.

 

[Bomberlicious]

I'll help with your physics homework.


Drop it and take Biology.

 

[rdhopkins2]

61%.

Couldn't have put it any better! 61% for that!!!
Now why does the teacher want to see him after class?
Personally, I would have written 'epic fail' on the paper 0%.

 

[Smell The Glove]

Some more

 

[TigerCleavage]

The only thing I know about physics is, when you hit a frog with a cricket bat it'll eventually come in contact with a tree.

 

[giantroo]

Classic work from you guys!!

 

[triplejdude]

I haven't laughed as hard as I did reading the Oedipus story for a long time, absolute classic. 61% is unbelieveable

Heres another similar bullshit story

 

[The Kipster]

e) all of the above