Recent content by Joa Boaz

Basically, my equation was as followed: (density of water)*(length*width*depth of the boat measurement) = (weight of the boat + weight of all the people on the boat) (1000 kg/m3)*(3 m * 1 m * 0.24 m) = 720 kg 720 kg - 120 kg (the weight of the boat) = 600 kg 600 kg / 85 kg = 7.05 Thus, the...

[ mod note: moved from general physics so homework template is missing ][/color] At the end of each lesson, the lecturer gives a problem. The question is: A rectangular, flat-bottomed rowboat has a mass of 120 kg when empty. It's 3 meters long, 1 meter wide, and 0.24 meters deep. How many 85 kg...

Thank I am sorry but why would a positive omega means a negative VO ?

Thank you. So, if i wrote a general velocity vector equation for any point on the periphery of the wheel Vp = Vo + ω X Rop By differentiating so AA = AC + ω × (ω × RAC) + α × RAC

Homework Statement Rolling without slipping A) Derive the linear acceleration vector equations for points A, B, C, and O in terms of R, ω, α and θ at this instant. B) R = 0.5 m, ω=-54 r/s and α = 0. Determine the MPH of the vehicle and the vector accelerations of points A, B, C, and O. C) R...

So far, this is what I have. Now I tried to make as a nice as I could but for some reason every time I attempted to save on a PDF file, I find some missing fonts. This one seems to be okay. But question is what am I to do with the rho outside of the cavity.

I see. Thank you.

Oh, I see, I am sorry, I didn't understand your comment. I thought you said that my whole equation was wrong. The reason I have a negative it is because Q1 and Q2 are both positive and if I have up and right as my positive. This seems to suggest that Q1 electric field are moving away or to the...

I know how you feel. I'm having a miserable time with Physics 2. But hang in there, I hear that there is a light on the end of the tunnel.

My approach and solution, but not sure if it is correct path:

I do really appreciate your help. It seems that my level of physics is very low because I just don't see how I can use partial derivatives on this problem. But I really do appreciate your help.

Thank you. I am just trying to see whether I am going about solving the above problem correctly. Am I taking the right path? I find physics confusion, I guess, it doesn't help that most of the time my instructor is merely doing the same exactly example that the author provides step by step in...

Thank you for your help. But I am not sure if I am allowed to use the Laplace operator since the professor has not gone over the Laplace transform. Is there any other way to tackle the above question without using Laplace transform? Thank you.

Two positive charges Q1 and Q2 are separated by a distance d. Find a general expression for the distance from Q1 at which the electric field is 0 by defining Q2 as alphaQ1 (alpha > 0 with alpha not equal to 1). This expression should contain alpha, d, and possible some numeric constants. Check...

Trying Really Hard 2 Understand Physics