Safari

my graphics card stopped working...windows says it stopped because of error 43....i did every thing ,,,,updated drivers both from microsoft and from nvidia....and also did a fresh install of windows....but still the same problem,,,,plzzz helpp....

i would like to know why do we make a credit entry to partners drawings account whereas there is always a debit entry to the same account for a sole trader.whats the logic?

1-an aeroplane loops the loop in a vertical circle of radius 200m,with a speed of 40m/s at the top of loop.the pilot has a mass of 80kg.what is the tension in the strap holding him into his seat when he is at the top of the loop?

2-a particle is attached by means of a light inextensible string to a point 0.40m above smooth horizontal table.the particle moves in a horizontal circle of radius 0.30m with angular velocity w.find the reaction on the particle in term of w.hence find the max angular velocity for which the particle can remain on the table.

Please answer in detail explaining each and every step.

Thanx for solution.got annual exams.so plssssssssss help!

this question is given in a paper of CIE JUN 2004.they have written that internal energy increases,heat is supplied and there is no work done.however volume of water is smaller than that of ice for the same mass.the atmosphere pushes the water back.plzzzzzzz help me out.i think work is done on the system.