Recent content by sakebu

Hello, I have this one problem but have no idea how to get started. Avg. number of accidents is .4 accidents / day (Poisson Process) What is the probability that the time from now to the next accident will be more than 3 days? What is the probability that the the time from now to...

I don't really understand the difference..

Homework Statement A lightbulb marked "75W at 120V" is at one end of a long extension cord in which each of the two conductors has a resistance of 0.800Ω. The other end of the extension cord is plugged into a 120V outlet. Find the actual power of the bulb. Homework Equations P = V^2/ R...

Homework Statement A pig of mass (1158kg) is placed on a fart made of dry wood. The raft completely submerged in water so that the raft's top surface was just level with the surface of the lake. If the raft's volume was 3.40 m^3, what was the mass of the raft's dry wood? Density of water is...

Homework Statement μs = .300 Mass = 3.00kg Incline = 35° What is the minimum normal force applied to prevent the crate from sliding down the incline? Homework Equations μs = Fk / n The Attempt at a Solution The book solution is 32.1N but I have no idea how they got that.

Thanks. Once I found the binomial theorem: http://en.wikipedia.org/wiki/Binomial_theorem , It was so easy!

Homework Statement limit as h approaches 0 Homework Equations lim h→0 [ 2(x+h)^5 -5(x+h)^3 - 2x^5 + 5x^3 ] / h The Attempt at a Solution People have told me to use the power rule and gave me an answer of 10 x^4 + 15 x^2 but that doesn't seem to be right...