Recent content by spockjones20

Ok, that makes sense. Thanks a lot!

Homework Statement "At 273 K and 1.00x10^-2 atm, the density of a gas is 1.24x10^-5 g/cm^3. A.) Find the Vrms for the gas molecules B.) Find the molar mass and identify the gas (Choose from H2, He, H20, N2, O2, or CO2)" Homework Equations Vrms = √(3RT/Mm) pV = nRT The Attempt...

Ok. Would that go into the work equation?

Homework Statement 620 seconds after starting its take-off, a 260000 kg jet reaches its cruising altitude of 9200 meters and flies with a speed of 235 m/s. Neglecting friction, what has been the average power output of the engines? Homework Equations ΔKE = Work Power = Work/time...

Circular motion actually makes that a whole lot clearer in my head. Since it is constantly accelerating towards the center right? But at the same time speed is constant.

Homework Statement Which of the following statements is false? A.) The velocity of an object can change while maintaining a constant speed. B.)The speed of an object can change without the direction of its velocity vector changing. C.)An object that has a non-zero...

Ok this makes sense. So if they asked about heating a room, instead of maintaining a heat, would the volume play a bigger role? I can see how the loss refers to the surface area now, since it would not be lost from the inside of the box (the volume). Thank you

Well I am assuming it does not go through the floor, so that might get taken out. Heat rises, so would I focus on only the height aspect?

Homework Statement This question is from a thermodynamics test from a previous science olympiad competition that I am using to study from for a future test. "Consider two neighboring rectangular houses built from the same materials. One of the houses has twice the length, width, and height...

We don't actually know the question, so we can't know the answer. It is asking what is the probability of choosing the correct answer, not what the actual answer is. There are three different answers, so chosen at random wouldn't you have a 33% chance of being correct? EDIT: Looking back at it...

No problemo. Do you know any other lateral thinking puzzles? I'm drawing a blank as of now and can't think of any.

Oh, my bad. Did I get the description right and then just put up a poor puzzle, or was I off on both accounts? I apologize in either case. Would you care to put up a better description or puzzle? I always did like them.

Evo - My favorite part is how he knows what his weight is as soon as he reaches the bridge. Part of me wishes I was not into physics and could just enjoy puzzles like this at face value. As they say, ignorance is bliss! Then again, knowledge is power!

Correct! Now to my question. Wouldn't the downward acceleration of the object in the air create the same amount of force as holding the additional object in his hand, causing the bridge to break in either case?

I came across this puzzle in the book The Big Book of Riddles Puzzles and Enigmas and I am also certain I have seen it elsewhere throughout the internet. The puzzle as written goes like this "A troubadour holding three objects (a ball, a hat, and a bowling pin) arrives at a bridge. The...