Recent content by vortex193
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How to prove the law of cosines for all types of triangles?
I'm pretty sure that you can use trigonometry to determine the length of the perpendicular. But I only know that you have to show that this equation is true.- vortex193
- Post #3
- Forum: Precalculus Mathematics Homework Help
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How to prove the law of cosines for all types of triangles?
Homework Statement a^2 = b^2 + c^2 - 2bc(cosA) Confirm that this is true. Hint: Drop a perpendicular from angle B to side b and use the two right triangles formed. Homework Equations The Attempt at a Solution Honestly, I am looking at my diagram and simply cannot figure out...- vortex193
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- Law
- Replies: 4
- Forum: Precalculus Mathematics Homework Help
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Electric Circuit Question PLEASE HELP
but its not asking for the current through the capacitor but the current through the resistor- vortex193
- Post #6
- Forum: Introductory Physics Homework Help
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Electric Circuit Question PLEASE HELP
do you see the picture? if not here is the link: http://tinypic.com/r/20fyjkn/6- vortex193
- Post #4
- Forum: Introductory Physics Homework Help
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Electric Circuit Question PLEASE HELP
sorry guys. the question is: With C uncharged, switch S is closed (t = 0). At t = 0, what is the current through each resistor? At t = infinity, what is the current through each resistor?- vortex193
- Post #3
- Forum: Introductory Physics Homework Help
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Electric Circuit Question PLEASE HELP
Homework Statement V = 1.2 kV C = 65 micro Farads R1 = R2 = R3 = 0.75 MegaOhms With C uncharged, switch S is closed (t = 0). At t = 0, what is the current through each resistor? At t = infinity, what is the current through each resistor? Homework Equations V= IR q = qo[1 - e^-t(RC)]...- vortex193
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- Circuit Electric Electric circuit
- Replies: 7
- Forum: Introductory Physics Homework Help
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What Is the Final Pressure in Both Containers After Equalization?
Wow. Thank you. I really appreciate it. Where is the thanks button on this forum so I can thank you? I'm in Grade 12 and I am sure this is not a high school level question. Thank you once again.- vortex193
- Post #13
- Forum: Introductory Physics Homework Help
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What Is the Final Pressure in Both Containers After Equalization?
Wow. This question really does not make sense to me. I don't even know how to isolate for either n1 or n2.- vortex193
- Post #11
- Forum: Introductory Physics Homework Help
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What Is the Final Pressure in Both Containers After Equalization?
I don't understand how you can find n1 and n2 if you do not have n.- vortex193
- Post #9
- Forum: Introductory Physics Homework Help
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What Is the Final Pressure in Both Containers After Equalization?
Actually V1 and V2 is not given. You only know that V2 is 4 times V1.- vortex193
- Post #7
- Forum: Introductory Physics Homework Help
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What Is the Final Pressure in Both Containers After Equalization?
n = number of moles. So the final pressure would equal. P = (n1 +n2)RT/V but what would T and V be? remember that both containers begin and end with the same temperature.- vortex193
- Post #5
- Forum: Introductory Physics Homework Help
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What Is the Final Pressure in Both Containers After Equalization?
No relation was given for n1 and n2.- vortex193
- Post #3
- Forum: Introductory Physics Homework Help
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Solved: Gas Problem Assignment | Pressure Equalization
Homework Statement Container A holds an ideal gas at a pressure of 5x10^5 Pa and a temperature of 300 K. It is connected by a thin tube (and closed valve) to container B, with four times the volume of A. Container B holds the same ideal gas at a pressure of 10^5 Pa and a temperature of 400 K...- vortex193
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- Assignment Gas
- Replies: 1
- Forum: Advanced Physics Homework Help
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What Is the Final Pressure in Both Containers After Equalization?
Homework Statement Container A holds an ideal gas at a pressure of 5x10^5 Pa and a temperature of 300 K. It is connected by a thin tube (and closed valve) to container B, with four times the volume of A. Container B holds the same ideal gas at a pressure of 10^5 Pa and a temperature of 400 K...- vortex193
- Thread
- Assignment Gas
- Replies: 12
- Forum: Introductory Physics Homework Help