dear students, let’s analyze the oblique collision in two dimensional plane . here we are given, 2 balls of masses, m 1 and m 2, moving with initial speeds u 1 and u 2 in different directions, they collide at a point , and, bounce in different directions, with speeds v 1 and v 2 […]

in this example, it is given that a ball is released , from a height h above a floor with coefficient of restitution e , between floor and ball. we are required to find the number of bounces ball will take before coming to rest . and we are also required to find the total […]

in this example we are given two identical bars, which are connected by an ideal spring of natural length l knot, it is also given that its force constant is k , as shown , and a constant horizontal force f starts acting on one of the bars as shown, we are required to find […]

in this example it is given that a neutron moving at a speed v undergoes a head on elastic collision with a nucleus of mass number-a at rest . we are required to find the ratio of ki-netic energies of neutron after and before collision. now, let’s analyze this situation, we are given that a […]

In the previous lecture, we asked you to think about a whole bunch of questions, so let’s go ahead and discuss them. The first question we asked you to think about is what is mathematics? Well if you look at the dictionary meaning of mathematics, it says that mathematics is “the study of numbers, and […]

When scientists want to determine what kind of an affect they might have had on a habitat, they have to quantify that habitat in some way. So they use different tools to sample the habitat and get a better picture of what they’ve done. So we’re going to look at three of those different tools: […]

(music)>>THE BLACK BEAR IS MAKING A RETURN TO EAST TEXAS. AN ANIMAL THAT WAS ALMOST WIPED OUT DUE TO UNREGULATED HUNTING, AND LOSS OF HABITAT IS SLOWLY MAKING ITS WAY BACK TO THE BOTTOMLAND FORESTS ALONG THE STATES EASTERN BORDER.>>THE BEARS ARE COMING. THE ADJOINING STATES OF ARKANSAS, OKLAHOMA, AND LOUISIANA HAVE A GROWING, EXPANDING […]