There is no "present"
There is no "present," or is there? I was writing an essay about the relevance of history the other day when this thought occurred to me. Is there really "present?" All that we see, everything that we feel and touch, could they be considered as history? For example...
How do i calculate Q transferred in a PV graph (Pressure / Volume)? More specifcally, when it is a slope. All that was given is pressure and volume from the graph.
Also, in an isochoric process, how would one go about finding Q? I spent so much time on thermodynamics yet i still don't know...
This question is considered one of the hardest in this chapter regarding thermodynamics. I spent countless time trying to figure it out but i was never close to the answer. The question is:
Water is heated in an open pan where the air pressure is 1atm. WAter remains a liquid but expanded by a...
This question is considered one of the hardest in this chapter regarding thermodynamics. I spent countless time trying to figure it out but i was never close to the answer. The question is:
Water is heated in an open pan where the air pressure is 1atm. WAter remains a liquid but expanded by a...
BY only given the mass of air in a certain sample, how would one calculate the number of moles of air in the sample?
n = m / mass per mole
however, what's mass per mole? and how would you solve for it? thanks.
I just can't seem to figure this one out.
From the top of a tall building, a gun is fired. The bullet leaves the gun at a speed of 340m/s, parallel to the ground. The bullet puts a hole in a window of another building at "x" distance away, and hits a wall that faces the window that is "6.9m"...
An olympic long jumper leaves the ground at an angle of 23 and traveled a distance of 8.7m before landing. Find the speed at takeoff.
Ok, so I've tried to plug in datas in formulas but i keep getting the wrong answer. The answer is suppose to be 11 m/s. CAn someone guide me in a step by step...
In this problem, it states that Michael Jordan is able to jump and remain in the air for two full seconds from launch to landing. Use that information to calculate the maximun height that such jump would attain. It also says that MJ's jaximum jump height has been estimated at about one meter...
I think it's none because none of the options with the definition of an acid-base pair. They obviously don't neutralize each other and the number of protons in this case is irrelevant. That's what i think anyway. Am i right?
1) If given a chemical equilibrium reaction with the delta H, by comparing the rate of the final reaction, is it possible to find the rate of reverse reaction? I don't think its possible.
Well in this one, i have no idea how i would find the rate of final reaction. So if anyone can show me...
Uggh finally did all the chem problems and studied for the upcoming final but there are 2 questions left unanswered. MAybe someone can help me out with this:
If given a lists of acids, how would one know which 1 is the weakest conjugate base? For example, HF, HNO_2, H_2CO_3, H_3BO_3, HCl...
Hey guys i need some help. Most of these questions i already know the answer to but i just want to make sure I'm right. My final grade is riding on this
1) If given a chemical equilibrium reaction with the delta H, by comparing the rate of the final reaction, is it possible to find the...
Thanks, back to the sig fig problems, shouldn't 1.0 be considered 1 sig fig? since in a log answer, only the numbers after the decimal point is counted as a sig fig.