im sorry I am still not getting it. can you show me with an example? like use different values or something then i could do it on my own. maybe its just me but that is how i learn.
Transcranial magnetic stimulation (TMS) is a noninvasive technique used to stimulate regions of the human brain. In TMS, a small coil is placed on the scalp and a brief burst of current in the coil produces a rapidly changing magnetic field inside the brain. The induced emf can stimulate...
Boyles Law Question. Any help please
ok the purpose in the lab was to show the relationship between pressure nad volume of a gas. In the lab temperature is held constant.
The question is
Calculate the volume of the tube which represents the dead volume. i got it. its v=pier^2h
which is...
here are the initial values.
Temp of hot water = 75 degrees C
temp of cold water 22 degrees C
Final temp of mixture 46.5 C
With those values i determined delta T
Hot water:
v- 50ml
delta t = -28.5
Cold water
v=50ml
delta t = 24.5
delta H of warmwater is a 50g(4.184)(-28.5) = -5962.6
delta H of cold water = 5125.45
From there i don't know what to do to find the Calorimeter constant any help? Also i did the above calculations correct right?
I'm given that
Copper sulfate + sodium carbonate --> copper carbonate + sodium sulfate.
Mass of Sodium Carbonate 1.460g
Volume of copper sulfate 28.50 mL
Actual yield of copper carbonate is 0.15g
The question is using your data and knowing that sodium carbonate was in excess...
A 40 ml volume of iron nitrate (1.8M) is mixed with 21.5ml of iron nitrate (0.808M) calculate the molar concentration of the final solution.
what would be the steps to solve this problem. I am assuming i have to find the number of moles of each given the data but from there I am unsure.
The angle between the vectors is 45°.
The vectors have unequal magnitudes and are opposite in direction.
The vectors are perpendicular.
The vectors have the same direction.
these are the possible answers.
im thinking that the vectors are perpendicular by I am not entirely sure
2.45 and 2.55 i don't get the steps, on how they get to the final answers, can someone explain please.
http://ea2.mccormick.northwestern.edu/homework/hw1-sol.pdf
so would the force of AB be equal too square root 4^2 + 11.8^2? can you get me started a little bit more, other than that i could probely get it thank you