Winnie faith

If two fair dice are tossed together. What is the probability that the score will be A) A prime number B)A perfect square C) perfect square D)A total of 4

Two fair dice are tossed, find the probability that total score that show up is: A) 8 B)less than 6 C) greater than equal to 9 D) a prime number

An object of mass 5kg moving with a speed of 30m/s is suddenly hit by another object moving in thesame direction, thereby changing the speed of the former object to 60m/s. Calculate the impulse received by the first object.

A boy has 10 identical marbles in a container consisting of a 6 red and 4 blue marble. He draws two marbles at random one after the other without replacement. Find the probability that: A) both draws are of different colours

A body of mass 0.4kg is fired with a velocity of 600m/s into a static train of mass 0.085kg. Given that the static train can move freely, calculate the final kinetic energy after the impact.