Recent content by Efast

Homework Statement The tension in the string is 90N; the string is 60cm long and has a weight of 34.44g. What is the speed of the wave on the string? Answer: 396 m/s Homework Equations v = √ T / (m/L) The Attempt at a Solution v = √ 90N / (0.0344kg/0.6m) v = 39.6 m/s Huh? This looks like it...

**This is more a general understanding question rather than a homework question** 1. Homework Statement So when you comb your hair trillions of electrons get transferred from your hair to your comb. So when trillions of electrons go missing how is your body able to maintain a neutral charge...

How did you make those equations look so beautiful haha Anyways, I used my formula to solve for M (mass of the object); F4=4[(√Mg/ρ)]/2L Which gave me, M = ρ[(2L*F4)/4]/g Which gave me; 0.846kg (CORRECT!) Just to further my understanding; how would I prove that the units work from this equation?

Okay after doing some research I derived a formula; F4 = V / (2/4)L , V = √(Ft/(m/L)). Combine together to get; F4 = [√((Mg)/(m/l))] / (2/4)L Solve for M = ([F4(2/4)L]^2(m/l))/g But still not getting the correct answer... What am I missing? Have you seen similar problems with an explanation...

Homework Statement An oscillator is attached to one end of a horizontal string. The other end passes over a frictionless pulley and is held taught by a mass m. The distance between the oscillator and the pulley is 1.2m. The string has a linear mass density of 1.6g/m and the frequency of the...