Recent content by fatherlewis

I'm currently in an electricity and magnetism physics course and we're using the 8th edition of Serway. I'm looking for a review type book that focuses on problem solving with examples and explanations rather than theory. Here are the topics we are covering throughout the course: 23...

when separating mixtures using only physical methods, does the order in which you separate them mater? for example, if i had had urea and napthalene in the mixture...both are water soluble...so to take the urea out i first take out the napthalene through sublimitation and then the urea...

Woah thanks a lot for your help.

Yes it's taking the integral my problem...:shy:

I manage to understand everything except on how to get the position function with respect to time.

The answers, respectively, are: a: x=-(1.67x10^7m/s^3)t^3 + (1.50x10^5m/s^2)t^2 b: 3.00x10^-3s c:450m/s d:0.900m I need help finding out how to solve this problem, so far I've got a=-(10.00x10^7)(t)+(3.00x10^5) as the derivative (don't understand how it's 1.67...) and that the acceleration of...

k i got a=-(10.00x10^7m/s^3)(t)+(3.00x10^5m/s^2) as the derivative

The speed of a bullet as it travels down the barrel of a rifle toward the opening is given by v=(-5.00x10^7)(t^squared)+(3.00x10^3)(t)... v=m/s, and t=s. Acceleration of the bullet just as it leaves the barrel is 0m/s^squared. Questions is: How do i find the acceleration and position of the...

Yeah they specifically ask for me to graph the problem. Thanks a lot for all your help alphysicist.

Thanks for the catch 0 would make more sense for the total average velocity which then gives me: (57.5/5)=11.5m/s as the average velocity The question asks me to plot the givens onto a distance over time graph, and then take the tangent lines of several points and get the slope of each of...

This is how I got the answers: I got the average velocity by (57.5-2.3)/(5-1)= 13.8m/s I plotted all those points, and then I drew a tangent to 7 points (5 of which were those chosen points) and then found the slope for each of those points which gave me the instantaneous velocity at each...

Hi guys, I'm having trouble finding a reasonable answer to the initial velocity of a car. These are my givens: t(s) 0 1.0 2.0 3.0 4.0 5.0 x(m)0 2.3 9.2 20.7 36.8 57.5 I have solved that the average velocity = 13.8m/s That the average acceleration =...