Total # Posts: 21
Nm juniour clg,rkl
A 20gm bullet collision is fired horizontaly into a 5kg block of wood.suspended by a long spring.The bullet gets embedded in the block and the block at the hole swing 15cm above in intial level.calculate the velocity of bullet?
November 3, 2015
Stone dropped from top of a tower 100m high. At same instant another stone is thrown vertically from base of the tower with a velocity of 25m/s. When and where will the two stones meet? Given g =10 m/s^2
February 13, 2015
the ray of son strike the surfaces of a lake at an angle of incidence of 30°.find the angle through which the rays are deviated when they enter water of refrective index 1.33.
November 11, 2014
Liz uses 19 connecting cubes to make a model of house. The house model is in the shape of a rectangle and is one cube high. How many different ways could Liz make the model of the house?
October 26, 2014
Two masses m and 2m are attached with each other by a rope passing over a frictionless and massless pulley. If the pulley is accelerated upwards with an acceleration a, what is the value of T?
February 1, 2011
1 What are the reasons of declines in employee job satisfaction? 2 What factors differentiate good decision makers from poor ones? 3 When do groups make better decisions than individuals? 4 What are the pros and cons for focusing on the distant future and the heavy ...
January 9, 2011
If A=1+r^a+r^2a+r^3a+.......................to infinity B=1+r^b+r^2b+................to infinity then find a/b=????? Is r^2a supposed to be r^(2a) or a*r^2? In other words, is the a part of the exponent? what the heck is that? exponents are like 2 cubed or 2 squared. 2 cubed= ...
November 11, 2006