Lab 10 Execution

I have been using the posted formulas for the Qcorrect and Q(neglectmasserror) but am still getting them marked incorrect on Maple TA... is this a ploy to have me lose it?! - No but seriously, can anyone help. All my values are correct, but its still being marked wrong.

Is your answer near the value of 12.8 or 12.9 for Qcorrect?

thx.

units for W/Q is J/cal

Which m do you use????? and which Q????? I'm getting all of my error deltaQs wrong. someone please post which value to use thank you!

i used all the equations posted for 7
and still getting it wrong
plz help guys

Bottom of Question 7


any helllllllp plz

correct: sqrt((Deltam/m)^2+(DeltadeltaT/deltaT)^2)*Qwater

deltam= .02
m=mass of water only
DeltadeltaT=.7071
DeltaT=Tfinal-Tinitial
Qwater=mass of water * specific heat of water * deltaT


neglect mass: sqrt(DeltadeltaT/deltaT)^2)*Qwater
(use same exect numbers as for correct delta Q) = answer should be the around or same as correct deltaQ

Hopefully this helped, Gd Luck

smartii

thanx , but still getting the formulas wrong

What formulas?

For the bottom of #7 on maple TA

sorrii...try checking your calculations...formulas worked for me

ohhh i thought it was a formula question didn't know the wanted a #

thanx a lot

i don't understand which formula to use, the lab manual said it was 15 percent, so i tried .15 and .015 even and also 15 percent of my average force (.15 x average force) but still no luck

thanks in advance, i really need this formula to do question 5!

i don't understand what to do for the error of F for question 2
.15 and 15% of the average force doesn't work

and also what are the units for question 9- the heat Q?

THANK YOU!!

Guys the error of F is 15% of F. you have to calculate it using your F value.

for example my F was 2.8 therefore my error of F is .42 which is 15% of 2.8

good luck!

what am i suppose to put int for the error? how do i calculate it?