A radioactive sample initially contains N atoms. After three half-lives the number of atoms that have disintegrated is
The velocity time graph above describes the motion of a particle between two points P and Q. What is the distance between P and Q?
the fig above shows two connected bodies of masses M\(_1\) and M\(_2\) in equilibrium under gravity. The tension in the upper string is
A 50kg block is dropped from a point 10m above, as shown in the figure above. if the force constant of the spring is 4.0 x 10\(^4\)Nm-1, find the maximum compression of the spring. [g = 10ms\(^{-2}\)]
