CS50X - WorkX

network-config

Holes in a boat

                    Some 30 days back i thought to build a boat and started work on it firstly I draw a sketch of it that how it should look from different angles and then I think what material should I used to build a boat, suddenly I saw some pieces of steel sheets which was used by carpenters in remake of some old doors of our house and I thought this could be a good material for boat these sheets was very light in weight and was floating on water when I suspended them in a bucket of water and started to create the boat as designed in the sketch. The boat was going to run by a motor which will be powered by two small AA size pencil cells which were fitted by me in the way they create a good equilibrium.

                   But now arise a problem which was asking me a question the problem was; when I now suspended the boat in the water bucket the water entered the boat through small holes which was created in the process of fitting the motor and cells with the boat, I get solution of the problem very soon by putting some melted wax in the holes and then the boat was working nice but I thought when I went to a tour to Kashmir Pahalgam i got a chance for rafting in river Lider where i saw a lot many of holes in the raft boat but the boat was not sinking in the river and was floating fine but mine steel boat was sinking till the holes are not filled. From mine point of view this is because mine boat is not having so many holes that the water entered escapes from the other hole as the raft boat is having so many holes that the water entered from one escapes from other or where it runs the speed of water and the boat is so fast without any use of motor the holes in the boat don’t matter too much and also because of the material used in raft boat should be of different type that makes the boat float instead of having holes.

                     Any body having knowledge about this ask can comment and let me and the whole blog readers know about this ask.

ASK 3 

The RPM

                                  I am very interested in motorvehicles and all that kind stuff. I am confused a little bit about a thing that is THE RPM i am not able to to understand how this RPM sometimes fall and grows up when i was little small then i thought that the RPM should increase with the increase in speed every time and lowers when the speed deaccelerates. But after a shorter span i saw a many brochures of car manufacturers where it was written like "290 pound feel of torque just as before but maximum torque now kicks in sooner at 4000rpm(2008 edition of Subaru WRX STI )" in this case i am still thinking that how the maximum torque kicks sooner at 4000rpm it will be more at little more rpm because the formulae for torque is (force * force arm) then if the speed is increased the force on the wheel is also increased which increase the torque respectively. I also saw some cars having same top speeds but different RPM is it because of their different wheel sizes or if the wheel sizes should be same the RPM produced by both the vehicles will be same at same speed. My thinking says that two vehicles of same tyre size should produce same RPM at same speed.

                  Once while travelling from Jammu City to Udhampur City I was siiting in the cabin of the bus and inspecting the RPM meter with the other meters whole journey, when the Bus was in his 2nd gear and start accelerating quikcly the RPM was also increasing directly proportionally to the speedo meter to 2500rpm but when the speed reached 40km/hr and the driver changed the gear to 3rd the speed get less than 40km/hr but greater than 35km/hr That is only 5km (approx.) speed get reduced but the Rpm meter goes down to 1200rm from 2500rpm with the decrease of only five km of speed in this case the RPM meter is not directly proportional to the speedo meter so my suggestion may be wrong. If any body has an idea about this topic please comment on it or give the answer for me and the blog readers. 

ASK 2 

The Ask Journey

Hi, i am Satyam and today i am starting my ask journey which means that every thing that i know little less and i am having a confusion about a thing will be posted on my blog with the information i know about it and you people who by chance or strictle view my blog can comment on it if you know about that or later if i get rid of the problem i will re-post the solved question to the world for their and mine help, if some body want that much thing.

Glad to recieve your comments.





ASK 1