Recent content by phoenix159

Draw a diagram

Let the temperature (as a function of time) be T = a sin (nt + b) where t is the time in hours. Set t = 0 as 4 AM and find the values of a, n and b. Substitute the temperature values into the LHS of the equation and solve for t in each case.

In a particle accelerator, a fast moving particle (with v = 0.99c) decays into two photons, of total energy of 6.2 × 10−27 J. What is the rest mass of the fast moving particle?

there's a way to do it without using a substitution: use the fact that a = eln(a) i.e. 2 = eln(2) So 2ln(x) = eln(x)*ln(2) then integrate the RHS to get the answer

i got the first one ok but i still need help with the second one

i got the first one ok but i still need help with the second one

thanks

yes i do need help

see attachment:

http://www.scribd.com/doc/49281225/The-Student-s-Guide-to-HSC-Physics http://tianjara.net/hsc/notes/HSC_Phys_Notes.pdf

Thanks!

Prove by induction: 5n + 6n - 1 is divisible by 10 for all integers n

thanks

Find the limit of (1 - cosx)/x2 as x approaches zero

6M/k (k + 3) = 6 [M/k][k + 3] But M/k might not be a whole number