Let’s say I have a horizontal rod whose total length = ΔXtotal = 5 inches. However, the rod is made up of two pieces (ΔXshaft = 4 inches and ΔXbase = 1 inch) that are welded together, where ΔXtotal = ΔXshaft + ΔXbase and where ΔXshaft > ΔXbase. This rod is horizontally suspended in air by...
Ohh, yes, thank you! It's been awhile since I've done a diff eq... But, can I ask your opinion? Since it says the object is free falling, we should assuming it is still being acted upon by the force of gravity, right? So, is the acceleration given, 32.2 ft/s^2, the acceleration of the total...
Homework Statement
An object in free-fall has an acceleration (which is the rate of change in velocity with respect to time) of 32.2 feet per second2 downward plus air resistance. The air resistance is proportional to the velocity squared. If the initial velocity is 0 feet per second and the...
Awesome, thanks!
Yeah, I realized yesterday that the deltaS(total) couldn't be negative, since entropy can't be destroyed, so that was a slip on my part. Thanks for pointing it out!
Homework Statement
Consider two identical Einstein solids. One solid has been placed in boiling water and the other in ice water. Then the two solids are placed in good contact with each other within an insulated box. Using the concept of entropy, prove that heat will spontaneously transfer...