Recent content by Cheapo2004

Ok, I'm supposed to found the volume of the solid that is created after rotating the line f(x) = 2x-1 around the x axis. The limits are y=0 x=3 and x=0. I've been trying for about and hour, and keep getting the answer: 46.0766. I've done the integration tons of times, splitting the problem...

Heres a problem on a take home quiz I am doing, but i can't figure out how to get past the first step?! The density of helium gas at 0°C is 0.179 kg/m^3. The temperature is then raised to 100°C, but the pressure is kept constant. Assuming that Helium is an ideal gas, calculate the new density...

BUMP Still need help :frown:

Ok, here's a problem on a quiz that i just can't figure out. I'm having trouble drawing it in the first place: ----------- At the moment before a diver jumps from a diving board, a force of 1.200 X 10^3 N is exerted on the diver at an angle of 90 degrees to the board. This force produces a...

...? Newton's 3rd law...?

Ok, I am having a hard time figuring this problem out for two reasons, the first is that my teacher is very tricky, 2nd is that I'm not sure how to work it out. An air puck is tied to a string and allowed to revolve in a circle with circumference if 2pi. The other end of the string passes...

I'd love it for someone to check my latest work :!)

Ok, let's re-do this: vi=0 vf=10m/s t=3secs m=1500 kg a=(vf-vi)/t a=(10)/3 a=3.3m/s^2 d= (vi*t) + (a*(t^2))/2 d= (0*3) + (3.3(9))/2 d= 14.85m F = m * a F = 1500 * 3.3 F = 4950 W = F * d W = 4950 * 14.85 W = 73507.5 <--- ?

I have a quick question, I need to find Work for this problem, but I don't have a distance!? The problem provides vi and vf, time, and mass, but no distance? How do i find work? 1. A 1.50 X 10^3 kg car accelerates from rest to 10m/s in 3 seconds. A. What is the work done in this time? W=? B...