Recent content by nesan

I'm sorry I really don't understand what you're aiming at. Does it have to do with the m^3? I know it's mass per unit length but how would I go from 7860 kg / m^3 to what I need? Thank you.

Homework Statement http://puu.sh/frpk5/eae7bce2e3.png Homework Equations v = sqrt(T / (m / L)); The Attempt at a Solution 7.86 g / cm^3 = 7860 kg / m^3 T = v^2 * m/L T = 160 ^ 2 * 7860 which is a huge number I have no idea where the diametre plays a part.

Homework Statement Hey everyone I'm studying for a test and I can't get this concept right in my head If I bring both disks closer to each other, what exactly makes it so they're not slipping? The question is this Two disks are spinning freely about axes that run through their respective...

Whoohoo, I got it. "The propeller blades go through two revolutions between the fifth and the eighth second of the rotation." So θ(8) - θ(5) = 4 PI - > α (0.5 * 82 - 0.5 * 52) = 4 PI Solve for α and times it by 8.2 to get angular speed. I got approximately 5.28 which my textbook says is...

Since it says it starts at rest, when t = 0, ωο would be 0? We use the other formula θ = ωot + 1/2 αt^2 So θ(t) = 1/2αt^2 How would I figure out α?

Homework Statement The propeller blades of an airplane are 4.0 m long. The plane is getting ready for takeoff, and the propeller starts turning from rest at a constant angular acceleration. The propeller blades go through two revolutions between the fifth and the eighth second of the rotation...

Ohh the Z pattern. Blue would be 30. OMG thank you. Not very good at geometry. :P

Homework Statement The Attempt at a Solution I'm doing a question on inclined planes and centripetal acceleration. I understand the question and what it's asking for, I'm just having trouble splitting F into it's x and y components and how 60 degrees related to it. Any help would be...

I'm not 100% sure on this but imagine the whole universe as a giant car. Everything in it seems stationary to someone inside the car. Similar to that, the only way to answer your question is to view our universe from another universe. IDK, just a guess, I might be wrong. xD

Homework Statement Two bags contain marbles. Bag A contains 2 white marbles and 2 green marbles. Bag B contains 3 white marbles, 5 red marbles, and 4 green marbles. If you draw one marble at random from each bag, what is the probability of drawing 1 white marble and 1 green...

Two dice are rolled. What is the probability that the first die is a perfect square and the second die is a 4? First die : 2/6 Second die : 1/6 Won't the probability be just (2/ 6) * (1 / 6) = 2 / 36 = 1 / 18 My answer says 3 / 6 but aren't these events not mutually exclusive? :|

Why is it the same?

We're learning logarithms in school. I asked my teacher this question but she couldn't explain it very well. For a function such as f(x) = log(100x), base ten of course. When graphed I could say the graph is "compressed by a factor of 1 / 100" or Rewriting f(x) = log(100x) into f(x)...

Hello I'll get straight to the point. I'm really interested in going into Computational Physics. Where I live (Toronto, Ontario, Canada) not many offer that program nor are any of them close to me who do offer the program. I was wondering if it would be alright for me to do something...

Oh I got it. :) Tnx. :) <3