Recent content by Meera.sheeda

Homework Statement A proton and an alpha particle (q= +2e, m=4u) are fired directly at one another from far way, each with an initial velocity of 0.01c. What is their distance of closest approach, as measured between their centres? Homework Equations mivi = mf vf and KEi +Ui = KEf + Uf U =...

Thank you! I did have to use the 800W/m^2 but your link showed me how to include the surrounding temp in my calculations and I ended up getting the same answer as in the back of the book! thank you heaps for all your help :)

Thank you so much for your answer but this wasn't right either :/

Homework Statement You would like to put a solar hot water system on your roof but your not sure if it's feasible. A reference book on solar energy shows that the ground level solar intensity in your city is 800W/m^2 for at least five hours a day throughout most of the year. Assuming that the...