# Search results

1. ### Pls. HELP ME TO SOLVE THIS EQUATION

Are any equations specified with your work? If not, have a look in your textbooks or online. When trying to pick equations to use remember what information you have and what you hope to get out of it. You only have one piece of information, the wavelength λ, perhaps there are some universal...
2. ### Deceleration problem

Correct. Do you have a text book with a section on kinematics? Or even have a look here... http://en.wikipedia.org/wiki/Equations_of_motion#Motion_equation_1" Remember, you're trying to get something with no a term. In earlier physics, kinematics equations are usually presented "as is" but it...
3. ### Deceleration problem

You are on the right lines with the second formula you posted. Do you know a rearrangement of it? You need to find a formula with initial and final velocities, time and displacement.
4. ### Complex Roots

Would I be right in doing this this? z^{4}=2e^{in\frac{\pi }{3}} z=2e^{\frac{in\frac{\pi }{3}}{4}} with different roots being multiples of n, up to 5?
5. ### Complex Roots

Hello all, I've got a bit of a problem trying to find and plot solutions to this equation: z^{4}=1-i\sqrt{3} I'm ok to plot things on an Argand diagram and I know there will be 4 to find, but my sources only explain explicitly how to find the nth roots of unity. Any help would be...
6. ### Integral of a product of three functions?

Thank you both very much! You have saved me a lot of misguided scribbling =]
7. ### Integral of a product of three functions?

Uh.. is it odd? *crosses fingers* so it's zero? You might have guessed I'm new here, where should this question go?
8. ### Integral of a product of three functions?

Hello there, I've been battling through my books and searching the web, but nothing seems to give me any ideas on how to tackle this beast bellow: \int_{-\pi }^{\pi } e^{-x^{2}} \sqrt{x^{4}+1} sin x dx This is a reasonably desperate call for any information or literature anyone might know...