Electrochemistry part 3

lim_(x to 2^+) (([x]^(3))/(3) - [(x)/(3)]^(3)) is where [x] represents the integral part of x

A body of mass explodes at rest break up into three parts.If two parts having equal masses fly off perpendicularly to each other with a velocity of 18 m//s , then calculate the velocilty of the third part which has a mass 3 times the mass of each part.

There are 3 parts A,B and C in a question paper of Math's, which includes 6,7 and 8 questions respectivelty. From these parts 3,4 and 5 questions respectively are to be solved. In how many ways can a student select the questions from these parts?

If the imaginery part of (z-3)/(e^(itheta))+(e^(itheta))/(z-3) is zero, then z can lie on

Divide Rs1,870 into three parts in such a way that half of the first part, one-third of the second part and one-sixth of the third part are all equal.

coordination part 3

Labelled part A is the part of

A stationary bomb explode into two parts of masses 3kg and 1kg. The total KE of the two parts after explosioons is 2400J. The KE of the smaller part is

A 1 kg stationary bomb is exploded in three parts having mass 1 : 1 : 3 respectively. Parts having same mass move in perpendicular direction with velocity 30 ms^(–1) , then the velocity of bigger part will be : -

In an examination, a question paper consists of 12 questions divided into two parts i.e., Part I and Part II, containing 5 and 7 questions, respectively. A student is required to attempt 8 questions in all, selecting at least 3 from each part. In how many ways can a student select the questions?