DifferentBrains

two grains are falling from the sky. They have the same radius and mass. The top one, A,  has a relative velocity compare to the other, B wich is v0. A is falling vertically, but hits B at an angle created by a line drawn between the mass centre of the two grains, and the horizontal ground. As they colide, they stick to eachother, creating a spin. What is the loss of energy during the colission? This question involves finding the linear velocity, the angular velocity and the moment of inertia. And at first i thought ‘hmm..not so bad…’ but then i  ended up with deltaE = (v0^2*m/224)*(51*sin(theta)^2-117) and  i went like wtf is theta? and so i’m like ‘you suck’…:(

Hello everybody!

It’s finally here! What we (I) have been waiting for for so long..Summertime! Sun is shining..The wind is whispering in my ear, the grass and trees are green again, the birds are flying and the bees are back! (not haz been waiting 4 teh last one though). One of my favourite activities these days is sitting in the sill, while the sun is shining in, singing whatever comes to mind. You should try it sometime.

For those who wants to know, I’m visiting Standy this weekend. Today we went to the beach and laid down on the grass, trying to study some math and so on (That didn’t go to smooth, considering Standy kept poking and tickeling me, but the weather was lovely, so i guess it’s ok) . Later we went home and made some lasagna. And yes: it was yummy!=)

Hope you all are having a wonderful time even though exams and stuff probably are coming up. Try to take a break every once in a while, and enjoy the sun, take a walk, smell the flowers or whatever u might prefer.

Love you all!

Karshi

This is part 1 of 6, all recommended :)

God bless, and have a happy Sabbath!