http://sbphysics121.forumotion.net/lab-help-123-f2/-t1.htm A place to get hellp with the labs. Wed, 17 Dec 2008 01:32:34 GMT 10 http://illiweb.com/fa/prosilver/site_logo.gif http://sbphysics121.forumotion.net/lab-help-123-f2/-t1.htm http://sbphysics121.forumotion.net/lab-help-123-f2/lab-10-execution-t113.htm Anonymous Does anyone know the answer to question 3 thanks. Lab Help 123 Mon, 08 Dec 2008 23:03:33 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/lab-10-execution-t113.htm#1187 http://sbphysics121.forumotion.net/lab-help-123-f2/lab-10-execution-t113.htm http://sbphysics121.forumotion.net/lab-help-123-f2/quick-question-on-lab-7-question-4-t124.htm Anonymous FOR QUESTION 4 IT ASKING FOR THE UNITS FOR THE ERROR AND DELTA ERROR...WHAT ARE THE UNITS? I TRIED PUTING N/m BUT IT DOESNT SEEM TO WORK AND I TRIED LEAVING IT BLANK AND STILL NO GOOD...ANYONE KNOW THE UNITS FOR QUESTION FOR THE SLOPE? Lab Help 123 Wed, 17 Dec 2008 01:32:34 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/quick-question-on-lab-7-question-4-t124.htm#1301 http://sbphysics121.forumotion.net/lab-help-123-f2/quick-question-on-lab-7-question-4-t124.htm http://sbphysics121.forumotion.net/lab-help-123-f2/lab-10-preparation-t114.htm Anonymous This is pretty straightforward but I'll post it anyway 1.) theta = N*2*pi torque = F*R W= tau*theta W=(F*R)*(N*2*pi) 2.) Q = m*c*deltaT the mass of the object = m the specific heat " = c and the temperature rise " = deltaT The combined heat for all objects is Qi + Qo + Qw + Qs + Qt 3.) A- Crank turning the black cylinder B- Counter for the # of turns C-String ... Lab Help 123 Tue, 09 Dec 2008 00:50:28 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/lab-10-preparation-t114.htm#1192 http://sbphysics121.forumotion.net/lab-help-123-f2/lab-10-preparation-t114.htm http://sbphysics121.forumotion.net/lab-help-123-f2/help-on-question-2-for-lab-quiz-10-t116.htm Anonymous I cant figure out how to do question 2...this is the practice problem on the cd... can someone show me step by step how to do this? 2) When doing the experiment sketched above you heat up the brass containers with a combined mass mb = 197 grams and an amount of water with a mass mw = 305 grams. What is the amount of heat absorbed (Ch 13 sheet by the cups and the water (in calories), if their initial temperature (at the start of the cranking) and their final temperature (after ending the ... Lab Help 123 Wed, 10 Dec 2008 21:25:32 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/help-on-question-2-for-lab-quiz-10-t116.htm#1247 http://sbphysics121.forumotion.net/lab-help-123-f2/help-on-question-2-for-lab-quiz-10-t116.htm http://sbphysics121.forumotion.net/lab-help-123-f2/lab-quiz-10-t111.htm Anonymous 1) You do work against a constant force of F = 2.8 N, which balances (is equal to in magnitude) the frictional force between the two brass cups shown, the rotating outer brass cup and the stationary inner brass cup in the sketch above. The force exerted by a string acts tangentially to the disk shown, which has an effective diameter D = 10.6 cm. What is the amount of work (Ch8 sheet 38) you do via a crank that rotates the outer brass cup N = 1852 times ? (Hint: when evaluating the work, write ... Lab Help 123 Sat, 06 Dec 2008 04:12:15 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/lab-quiz-10-t111.htm#1132 http://sbphysics121.forumotion.net/lab-help-123-f2/lab-quiz-10-t111.htm http://sbphysics121.forumotion.net/lab-help-123-f2/sorry-forgot-to-include-the-question-number-for-post-above-t117.htm Anonymous
sqrt((deltam/m)^2)+(deltadeltaT/deltaT)^2))* Q

mass is for the water as well as Q]]> Lab Help 123 Thu, 11 Dec 2008 03:13:50 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/sorry-forgot-to-include-the-question-number-for-post-above-t117.htm#1260 http://sbphysics121.forumotion.net/lab-help-123-f2/sorry-forgot-to-include-the-question-number-for-post-above-t117.htm http://sbphysics121.forumotion.net/lab-help-123-f2/specific-heat-units-t115.htm Anonymous i think its joules/ gram degrees c but im not sure how to enter it into maple ta for question 1
thanks]]> Lab Help 123 Tue, 09 Dec 2008 17:29:33 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/specific-heat-units-t115.htm#1208 http://sbphysics121.forumotion.net/lab-help-123-f2/specific-heat-units-t115.htm http://sbphysics121.forumotion.net/lab-help-123-f2/more-work-pleaseee-t112.htm Anonymous ]]> Lab Help 123 Mon, 08 Dec 2008 18:49:22 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/more-work-pleaseee-t112.htm#1181 http://sbphysics121.forumotion.net/lab-help-123-f2/more-work-pleaseee-t112.htm http://sbphysics121.forumotion.net/lab-help-123-f2/lab-8-execution-t106.htm Anonymous
I have abs(.5)* (constant*Deltamu/Deltamu)*v]]> Lab Help 123 Tue, 02 Dec 2008 22:37:23 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/lab-8-execution-t106.htm#1034 http://sbphysics121.forumotion.net/lab-help-123-f2/lab-8-execution-t106.htm http://sbphysics121.forumotion.net/lab-help-123-f2/question-5-t110.htm Anonymous Do we need to do Question 5 ? anyone knows ? Lab Help 123 Thu, 04 Dec 2008 16:53:46 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/question-5-t110.htm#1101 http://sbphysics121.forumotion.net/lab-help-123-f2/question-5-t110.htm http://sbphysics121.forumotion.net/lab-help-123-f2/lab-8-preparation-t98.htm Anonymous 2.)The string in the setup sketched above is a rubber band which stretches sizeably under tension. You measured the mass of the string placing it, removed from the set, on a scale. Select all correct statements: There are 6 wavelengths of the standing wave fitting into the distance The length of string relevant for the calculation of the standing wave frequency is If you decrease the number of wavelengths fitting into the distance , the frequency ... Lab Help 123 Sun, 30 Nov 2008 20:20:47 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/lab-8-preparation-t98.htm#982 http://sbphysics121.forumotion.net/lab-help-123-f2/lab-8-preparation-t98.htm http://sbphysics121.forumotion.net/lab-help-123-f2/question-5-t109.htm Anonymous I do not understand what they want us to put into MapleTA, has anyone had sucsess with this question? Lab Help 123 Wed, 03 Dec 2008 22:14:12 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/question-5-t109.htm#1064 http://sbphysics121.forumotion.net/lab-help-123-f2/question-5-t109.htm http://sbphysics121.forumotion.net/lab-help-123-f2/si-units-for-3-11-and-13-t108.htm Anonymous and the si unit for slope (k) in number 13?
thanks]]> Lab Help 123 Wed, 03 Dec 2008 16:39:40 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/si-units-for-3-11-and-13-t108.htm#1054 http://sbphysics121.forumotion.net/lab-help-123-f2/si-units-for-3-11-and-13-t108.htm http://sbphysics121.forumotion.net/lab-help-123-f2/lab-quiz-8-t97.htm bizk1t4u You measure the mass of a string to be 4.35grams with an error of 0.1 grams, and the length of the string to be 151cm with an error of 2 cm. The string runs over a pulley and has 101.1grams suspended from it as shown in the figure above. You neglect the error of the suspended mass. What is the absolute error of the traveling wave velocity on the string (Ch10 sheet 20) ? (Hint: calculate the relative error of the linear mass density u=m/L using equation (7) of "Error and Uncertainty" ... Lab Help 123 Fri, 28 Nov 2008 00:18:52 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/lab-quiz-8-t97.htm#974 http://sbphysics121.forumotion.net/lab-help-123-f2/lab-quiz-8-t97.htm http://sbphysics121.forumotion.net/lab-help-123-f2/3-pleaseeeeeee-t101.htm Anonymous ]]> Lab Help 123 Mon, 01 Dec 2008 02:50:34 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/3-pleaseeeeeee-t101.htm#997 http://sbphysics121.forumotion.net/lab-help-123-f2/3-pleaseeeeeee-t101.htm http://sbphysics121.forumotion.net/lab-help-123-f2/leb-report-7-execution-t93.htm Anonymous Does anyone know what the equation for DeltaKE_max is? Lab Help 123 Tue, 18 Nov 2008 02:57:22 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/leb-report-7-execution-t93.htm#888 http://sbphysics121.forumotion.net/lab-help-123-f2/leb-report-7-execution-t93.htm http://sbphysics121.forumotion.net/lab-help-123-f2/lab-quiz-7-t89.htm Anonymous don't forgett to convert to SI answer neg
#2 T= 2pi*sqrt(mass of glider/K)
answer neg

I ask for input on #3 constant = 2*pi so
T=2*pi*k^-.5 with expression 8: 2*pi*k^-.5*(deltaT/T)?
any thoughts?]]> Lab Help 123 Sun, 16 Nov 2008 14:50:28 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/lab-quiz-7-t89.htm#822 http://sbphysics121.forumotion.net/lab-help-123-f2/lab-quiz-7-t89.htm http://sbphysics121.forumotion.net/lab-help-123-f2/lab-report-7-help-t92.htm Anonymous ]]> Lab Help 123 Mon, 17 Nov 2008 13:17:13 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/lab-report-7-help-t92.htm#868 http://sbphysics121.forumotion.net/lab-help-123-f2/lab-report-7-help-t92.htm http://sbphysics121.forumotion.net/lab-help-123-f2/error-bars-t91.htm Anonymous Any help is appreciated.
thank you.]]> Lab Help 123 Mon, 17 Nov 2008 03:20:12 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/error-bars-t91.htm#855 http://sbphysics121.forumotion.net/lab-help-123-f2/error-bars-t91.htm http://sbphysics121.forumotion.net/lab-help-123-f2/delta_m-any-body-t90.htm Anonymous Will be eternally grateful lol]]> Lab Help 123 Mon, 17 Nov 2008 03:06:25 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/delta_m-any-body-t90.htm#853 http://sbphysics121.forumotion.net/lab-help-123-f2/delta_m-any-body-t90.htm http://sbphysics121.forumotion.net/lab-help-123-f2/lab-report-6-help-t80.htm Anonymous FOR LAB REPORT 6 Part 1 "PREPARATION" Question 1: T net = I*alpha omega = omega_0+alpha*t omega_0 is the Initial angular velocity Equation (2) shows that, when plotting the angular velocity vs time, the graph is linear with its slope = angular acceleration Question 2: I = (m*r*(g-r*alpha))/(abs(alpha_fr)+alpha) Question 3: C = 3, D= 5, E= 6, H= 1 , F=7, B= 4, A=2, G=8 Question 4: D=1, F=4, C=2, A=6, B=3, E=5 Question 5: I_disk ... Lab Help 123 Mon, 10 Nov 2008 04:39:03 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/lab-report-6-help-t80.htm#686 http://sbphysics121.forumotion.net/lab-help-123-f2/lab-report-6-help-t80.htm http://sbphysics121.forumotion.net/lab-help-123-f2/si-unit-for-inerita-t88.htm Anonymous im drawing a blank for the si unit for inerita. i thought it was kg/m^2 but i got it marked wrong Lab Help 123 Sun, 16 Nov 2008 04:32:02 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/si-unit-for-inerita-t88.htm#819 http://sbphysics121.forumotion.net/lab-help-123-f2/si-unit-for-inerita-t88.htm http://sbphysics121.forumotion.net/lab-help-123-f2/lab-quiz-6-t58.htm Anonymous Question 1: (1 point) You spin a wheel to give it an initial angular acceleration. The angular velocity of the wheel decreases with time due to a frictional torque acting on the axle of the wheel. You plot the angular velocity as a function of time. When determining the slope of the linear graph, you measure a change of the angular velocity with a magnitude of 3.5 rad/s for a time interval of 11.4 s. What is the magnitude of the angular acceleration due to friction (see Ch8 sheet 5)? ... Lab Help 123 Thu, 23 Oct 2008 17:01:34 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/lab-quiz-6-t58.htm#472 http://sbphysics121.forumotion.net/lab-help-123-f2/lab-quiz-6-t58.htm http://sbphysics121.forumotion.net/lab-help-123-f2/question-1113-t83.htm Anonymous how do you get angular velocity before and after and error angular velocity before and after?]]> Lab Help 123 Wed, 12 Nov 2008 06:23:21 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/question-1113-t83.htm#754 http://sbphysics121.forumotion.net/lab-help-123-f2/question-1113-t83.htm http://sbphysics121.forumotion.net/lab-help-123-f2/execution-lab6-t82.htm Anonymous I = constant x r
Delta I= I*Deltar/r]]> Lab Help 123 Tue, 11 Nov 2008 10:59:44 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/execution-lab6-t82.htm#724 http://sbphysics121.forumotion.net/lab-help-123-f2/execution-lab6-t82.htm http://sbphysics121.forumotion.net/lab-help-123-f2/creating-a-proper-graph-t70.htm Guest01 I'm sure a lot of people are having trouble with their graphs. I thought I'd create a little tutorial on the proper way to create one. The TA's are looking for specifics. First thing to realize is which axis is which. When it asks you to plot M vs. N think of it this way to know on which axis the labels go. Think of it as Y-axes vs. X-axes. Labeling them is just marking the number intervals, what each axis is and it's units. The error bars are the errors calculated included on your graph, they'll ... Lab Help 123 Wed, 29 Oct 2008 00:44:07 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/creating-a-proper-graph-t70.htm#581 http://sbphysics121.forumotion.net/lab-help-123-f2/creating-a-proper-graph-t70.htm http://sbphysics121.forumotion.net/lab-help-123-f2/lab-report-5-t53.htm Anonymous anyone got number 1? Lab Help 123 Mon, 20 Oct 2008 21:10:33 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/lab-report-5-t53.htm#398 http://sbphysics121.forumotion.net/lab-help-123-f2/lab-report-5-t53.htm http://sbphysics121.forumotion.net/lab-help-123-f2/does-anyone-know-9-t63.htm Anonymous For #9 how do we calculate deltavi/vi? Lab Help 123 Mon, 27 Oct 2008 00:03:44 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/does-anyone-know-9-t63.htm#536 http://sbphysics121.forumotion.net/lab-help-123-f2/does-anyone-know-9-t63.htm http://sbphysics121.forumotion.net/lab-help-123-f2/momentum-conservation-t61.htm Anonymous 2) Why is energy conserved (not conserved) in Part I, II, III of lab 5?

please explain theoretically]]> Lab Help 123 Sun, 26 Oct 2008 20:20:20 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/momentum-conservation-t61.htm#524 http://sbphysics121.forumotion.net/lab-help-123-f2/momentum-conservation-t61.htm http://sbphysics121.forumotion.net/lab-help-123-f2/lab-quiz-5-t50.htm Anonymous Question 1: (1 point) The sketch above shows a small glider of 162.3 grams colliding with a large stationary glider of 243.3 grams on the left. On the right the two gliders are shown in motion after the collision. The velocities of the gliders after the collision are 0.06248 m/s for the small glider and 0.300 m/s for the large glider. What is the momentum of the incident glider? Indicate with a positive (negative) sign whether the small glider moves right (left) after the collision. (NOTE! ... Lab Help 123 Sat, 18 Oct 2008 14:58:05 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/lab-quiz-5-t50.htm#363 http://sbphysics121.forumotion.net/lab-help-123-f2/lab-quiz-5-t50.htm http://sbphysics121.forumotion.net/lab-help-123-f2/question-14-t57.htm Anonymous
i tried sqrt of intial and final momentum added together and it didn't work.]]> Lab Help 123 Thu, 23 Oct 2008 14:40:38 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/question-14-t57.htm#469 http://sbphysics121.forumotion.net/lab-help-123-f2/question-14-t57.htm http://sbphysics121.forumotion.net/lab-help-123-f2/question-6-and-7-t56.htm Anonymous

how do u find Vi prime and deltavi prime/vi prime....for vi prime do u just do w/t using t prime? if so i have done this and has not worked]]> Lab Help 123 Wed, 22 Oct 2008 12:07:06 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/question-6-and-7-t56.htm#445 http://sbphysics121.forumotion.net/lab-help-123-f2/question-6-and-7-t56.htm http://sbphysics121.forumotion.net/lab-help-123-f2/lab-report-4-t35.htm bizk1t4u Question 10) The velocity v=d/t . Assume that the error of the time t is negigible (i.e. 1/t is a constant factor for the purpose of error calculation). Given Deltad , the absolute error of the distance d in the figure above, give the expression of the relative error Deltav/v (Use equation (3) of "Error and Uncertainty". Use Deltad for ). Then convert to the expression for the absolute error Deltav (Use :equation (4) of "Error and Uncertainty".) Lab Help 123 Mon, 13 Oct 2008 14:10:07 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/lab-report-4-t35.htm#213 http://sbphysics121.forumotion.net/lab-help-123-f2/lab-report-4-t35.htm http://sbphysics121.forumotion.net/lab-help-123-f2/slope-help-t52.htm Anonymous how do you calcute the slope needed for number 24 Lab Help 123 Mon, 20 Oct 2008 01:36:46 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/slope-help-t52.htm#371 http://sbphysics121.forumotion.net/lab-help-123-f2/slope-help-t52.htm http://sbphysics121.forumotion.net/lab-help-123-f2/questions-235-t47.htm Anonymous Is it my computer or do the figures not appear on questions 2,3,5 for other people? Lab Help 123 Thu, 16 Oct 2008 00:06:44 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/questions-235-t47.htm#318 http://sbphysics121.forumotion.net/lab-help-123-f2/questions-235-t47.htm http://sbphysics121.forumotion.net/lab-help-123-f2/24-slope-clarification-t45.htm Anonymous does anyone else get a slope of ~ -1.8? is that wrong...? its because u multiply by .5 for KE...so ure dividing by 1/2 which makes the slope close to -2 even though its suppose to be -1 Lab Help 123 Wed, 15 Oct 2008 21:30:02 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/24-slope-clarification-t45.htm#309 http://sbphysics121.forumotion.net/lab-help-123-f2/24-slope-clarification-t45.htm http://sbphysics121.forumotion.net/lab-help-123-f2/question6-t44.htm Anonymous

.. and every time i change my answer to question 6 my answer to question 8 becomes wrong :-x help?]]> Lab Help 123 Wed, 15 Oct 2008 17:33:39 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/question6-t44.htm#302 http://sbphysics121.forumotion.net/lab-help-123-f2/question6-t44.htm http://sbphysics121.forumotion.net/lab-help-123-f2/question-23-help-and-can-help-with-any-other-questions-t43.htm Anonymous anyone know the formula for the error of KE? i can help with anything else i just need to find this, thanks Lab Help 123 Wed, 15 Oct 2008 15:19:36 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/question-23-help-and-can-help-with-any-other-questions-t43.htm#288 http://sbphysics121.forumotion.net/lab-help-123-f2/question-23-help-and-can-help-with-any-other-questions-t43.htm http://sbphysics121.forumotion.net/lab-help-123-f2/basic-tuff-t42.htm Anonymous and in table 1 how do u figure out delta v]]> Lab Help 123 Wed, 15 Oct 2008 14:57:29 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/basic-tuff-t42.htm#286 http://sbphysics121.forumotion.net/lab-help-123-f2/basic-tuff-t42.htm http://sbphysics121.forumotion.net/lab-help-123-f2/please-help-with-the-following-questions-t41.htm Anonymous 21, 23, 24, 25?? thank you. I can help with all the other ones! Lab Help 123 Wed, 15 Oct 2008 04:36:58 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/please-help-with-the-following-questions-t41.htm#278 http://sbphysics121.forumotion.net/lab-help-123-f2/please-help-with-the-following-questions-t41.htm http://sbphysics121.forumotion.net/lab-help-123-f2/lab-quiz-4-t22.htm Anonymous Question 1: (1 point) In your lab on the conservation of total mechanical energy you have a 24 gram weight (mass m) connected via a string with a 276 gram glider, which glides horizontally with negligible friction as shown above. When you release the mass m, it and the glider are accelerated due to the weight of the mass m. What is the change in potential energy PE (Ch6 sheet 12) of the mass m when the glider moves a distance of 111.4 cm? Indicate with a positive (negative) sign whether ... Lab Help 123 Thu, 25 Sep 2008 14:35:07 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/lab-quiz-4-t22.htm#96 http://sbphysics121.forumotion.net/lab-help-123-f2/lab-quiz-4-t22.htm http://sbphysics121.forumotion.net/lab-help-123-f2/questions-18-21-t38.htm Anonymous
?????]]> Lab Help 123 Tue, 14 Oct 2008 18:58:41 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/questions-18-21-t38.htm#231 http://sbphysics121.forumotion.net/lab-help-123-f2/questions-18-21-t38.htm http://sbphysics121.forumotion.net/lab-help-123-f2/question-7-t37.htm Anonymous Anyone know what the syntax for ques 7 should look like? Lab Help 123 Tue, 14 Oct 2008 18:41:41 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/question-7-t37.htm#228 http://sbphysics121.forumotion.net/lab-help-123-f2/question-7-t37.htm http://sbphysics121.forumotion.net/lab-help-123-f2/lab-report-1-part-b-t16.htm Park plz help me as much as you can!! thank you so much!! 2.Lab 1 Part II Period vs Angle - Error of Difference: The error for the difference of two quantities A and B , which have known absolute errors A and B is given by the right hand side of equation (6) in "Error and Uncertainty". The error for the difference between two time measurements and with absolute errors and is: (use DeltaT_1 for , DeltaT_2 for and sqrt(...) for ) ... Lab Help 123 Fri, 19 Sep 2008 04:27:22 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/lab-report-1-part-b-t16.htm#43 http://sbphysics121.forumotion.net/lab-help-123-f2/lab-report-1-part-b-t16.htm http://sbphysics121.forumotion.net/lab-help-123-f2/lab-report-3-t19.htm Anonymous PLZ HELP]]> Lab Help 123 Tue, 23 Sep 2008 23:08:00 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/lab-report-3-t19.htm#72 http://sbphysics121.forumotion.net/lab-help-123-f2/lab-report-3-t19.htm http://sbphysics121.forumotion.net/lab-help-123-f2/12-and-15-t26.htm Anonymous Does anyone know the format for #12? For #15 I'm having trouble finding Deltag- I know that i have to use the formula from #13 (sqrt(((Deltah/h)^2)+((2*(Deltak/k))^2)))*g but it's not coming out right. My values are Deltah=.002, h=.9640, Deltak=.56402, k=.4103, g=11.453. Please help! Lab Help 123 Mon, 29 Sep 2008 11:38:57 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/12-and-15-t26.htm#136 http://sbphysics121.forumotion.net/lab-help-123-f2/12-and-15-t26.htm http://sbphysics121.forumotion.net/lab-help-123-f2/question-2-3-16-t24.htm Anonymous ]]> Lab Help 123 Sat, 27 Sep 2008 01:43:57 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/question-2-3-16-t24.htm#104 http://sbphysics121.forumotion.net/lab-help-123-f2/question-2-3-16-t24.htm http://sbphysics121.forumotion.net/lab-help-123-f2/lab-3-quiz-t13.htm Anonymous 1) For this equation distance moved is equal to displacement, therefore velocity is equal to time. Thus, distance/time=speed. Or, Length of ball divided by the time the light is blocked is speed. 2)For this, set up a triangle with y displacement as y axis and x velocity as x axis. Find velocity in the Y direction using DeltaVy^2=2gDeltaY and then use DeltaVy=gt to solve for time. Then plug t into displacement of x equation. 3)Set equation equal to g. Find relative error of slope (s). Propogate ... Lab Help 123 Fri, 19 Sep 2008 04:05:00 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/lab-3-quiz-t13.htm#37 http://sbphysics121.forumotion.net/lab-help-123-f2/lab-3-quiz-t13.htm http://sbphysics121.forumotion.net/lab-help-123-f2/lab-0-question-t17.htm Anonymous Does anyone have any idea on how to do question 4 on lab 0? Example: Assume that the error in the quantity B is the fraction 0.19 of the error in A. You have a derived quantity S=A+B and want to calculate its error DS. You reason that, since the error in B is only a fraction of the error in A, you simply neglect the error in B. By how much deviates the error DS, calculated with this neglection, from the correctly calculated error DS? Give your answer in the form of the fraction |Correct-approximate|/Correct, ... Lab Help 123 Fri, 19 Sep 2008 11:15:11 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/lab-0-question-t17.htm#45 http://sbphysics121.forumotion.net/lab-help-123-f2/lab-0-question-t17.htm http://sbphysics121.forumotion.net/lab-help-123-f2/lab-2-question-18-t10.htm Anonymous
Lab 2 Part II Average of From Repeated Measurements and its Random Error - Error:



Equation (5") in "Error and Uncertainty" gives the random error of the average for measurements of the quantity t . Written for the absolute error of the average with = 5 measurements, it is:
(Use g_1 for, ...., gavg for )]]> Lab Help 123 Fri, 19 Sep 2008 00:02:24 GMT http://sbphysics121.forumotion.net/lab-help-123-f2/lab-2-question-18-t10.htm#19 http://sbphysics121.forumotion.net/lab-help-123-f2/lab-2-question-18-t10.htm