Under 50 Weight Tera @Nritya Performance #Shorts Video #Govind Mittal & Snehu

One mole of a certain ideal gas is contained under a weight-less piston of a vertical cylinder at a temperature T . The space over the piston opens into the atmosphere. What work has to be performed on order to increase isothermally the gas volume under the piston n times by slowly raising the piston ? The friction of the piston against the cylinder walls is negligibly small.

Naman and Govind after finishing their graduation under vocational stream decided to start their own travel a agency which will book rail Tickets and Air tickets on commission basis. They also thought of providing tickets within ten minutes through the use of internet. they discussed the idea with their professor Mr. Mehta who liked the idea and suggested then to first analyse the business environment whic consists of investors, competitors and other farces like social, political, etc. that may affect thier business directly of indirectly. he further told them about the technological improvements and shifts in consumer preference that were taking place and hence they should be aware of the environmental trends and change which may hinder their business performance. he emphasised on making plans keeping in mind the threate posed by the competition, so that they can deal with the situation effectively. this alignment of business operations with the business environment will result in better performance. (i) State any two features of business environment as discussed by professor mehta with Naman and Govind. (ii) State any two importance of business environment in above para.

A teacher wanted to analysis the performance of two sections of students in a mathematics test of 100 marks. Looking performance, she found that a few students got under 20 marks and a few got 70 marks or above. So she decided to group them into intervals of varying sizes as follows : 0-20, 20-30, ....., 60-70, 70-100. Then she formed the following table : |{:("Marks"," Number of students"),(0-20," 7"),(20-30," 10"),(30-40," 10"),(40-50," 20"),(50-60," 20"),(60-70," 15"),(70-"above"," 8"),("Total"," 90"):}| (i) Find the probability that a student obtained less than 20% in the mathematics test. (ii) Find the probability that a student obtained marks 60 or above .

The US athlete Florence Griffith oyner won the 100 m spring gold medal at Seol Olympic 1988 setting a new Olympic record of 10.54s. Assume that she achieved her maximum speed in a very short time and then ran the race with that speed till she crossed the line. Take her mas ot be 50 kg. a. Calculate the kinetic energy of Griffith Joyner at her full speed. b. Assuming tht the track the wind etc. offered an average resistance of one tenth of her weight, cfalculate the work done by the resistsnce durng the run. c. What power Griffith Joyner had to exet ot maintain uniform speed?