Recent content by h6872

Homework Statement Marie observes damped oscillations of a glider on an air track. She observed that the amplitude decreased to 50% of its original value after 10 seconds. What is the decay constant for the motion of the glider? Homework Equations The Attempt at a Solution It...

Hi everybody! This might seem like a terribly easy question, but I can't seem to figure it out for the life of me. I've been given a set of values for time and velocity: t (s) v (m/s) 0 0 3 7 7 16 12 33 18 48 23 53 27 67...

Hi... I was wondering exactly how a blank is used for a titration. Is the purpose to simply remove the extra "noise" in the results? If so, I guess I would subtract this blank from the calculated volumes of AgNO3 used... right? Please help! Thanks, -heather

Hi... I x-posted this to the other chemistry board..but that might've been the wrong place... I recently performed an experiment to determine the % Cl (by mass) of an unknown chloride sample containing both potassium and sodium. To determine this, we did a Fajans method titration using 0.1 M...

hi! Thanks for the advice, I managed to find the intersection points, but I seem to have run into a problem. I set up the integral as follows: (4-x^2) (for 1 to 2) + (4 - 1/x) (for 1/4 to 1) this worked out to ((8-8/3) - (4 - 1/3)) + (4 - (1 - ln1/4)) (16/3 - 11/3) + (3 + ln1/4) 5/3 +...

hi, the question goes as follows: y = x^2, y=1/x, y=4 for the first quadrant. This may be a dumb question :blushing: but how do I figure out the points at which these three intersect? Do I first set the first two equal to each other and then set the resulting equation equal to 4? Thanks...

If the first ball in problem 7) has a mass of 10 kg and the second ball is traveling at it with a speed of 14 m/s, what is the velocity, to one decimal place, of the first ball after collision? Problem (7) says A 9.8 kg steel ball, traveling left to right at 12 m/s, undergoes an elastic...

A 2 kg metal plate slides down a 10m high slope. If the slope is 49 degrees, and the speed at the bottom is 8m/s what is the coefficient of friction? This is what I tried: Wf = F x d I found the work done by Eg = Ek+Wf and then found d with 10/cos49... then I tried M = Ff/Fn (Fn found by...

the question is A mass of 3 kg is dropped from a height of 3.26 meters above a vertical spring anchored at its lower end to the floor. If the spring constant is 25 N/cm, how far to the nearest tenth of a cm, is the spring compressed? alright so the gravitational potential energy is converted...