Will the orbits of planets in the solar system change or will it be the same...
Sreeda asks: Will the orbits of planets in the solar system change or will it be the same forever? Answer: The orbits change over time. More details To be posted soonContinue reading...
View ArticleCan you answer this questions from units and dimensions
“Find the value of 60 joule per minute on a system which has 10cm, 100gm and 1 minute as fundamental units.” Post your answer as comments. You can also upload a file using the contact page or ask a...
View ArticleWhy the shock of alternating current is attractive ?
Why the shock of alternating current is attractive ? Answer: Shock is never attractive. I have experienced shock from AC several times, but never felt any attraction. But, during a severe shock...
View ArticleCentre of mass of an accelerated body
“What is the effect on centre of mass of system of particles when it is placed in accelerated train?” Vimal asked You may also like: Numerical from centre of massContinue reading...
View ArticleConservation of Angular Momentum and Kinetic Energy
Imagine a rod 2 meters long fixed at its center, 2 identical masses are placed 0.5 meters away on opposite sides , as the rod spins they slide towards the edges , according to the formula k.E.=0.5*I*ω2...
View ArticleNumerical from centre of mass
Two skaters, one with Mass 45kg, 2’nd with Mass of 65kg stand on an ice rink holding a pole with L=10m with negligible mass. starting from the ends of the pole, the skaters pull themselves along the...
View ArticleA Question from Electromagnetic Waves
Rajat asked: – we know that electric and magnetic field are associated with charged particle but when light travells,it produces electric and magnetic field both but it consests of photons,which is a...
View ArticleCable transmission of signals
HS Varun asked: How is it possible to transmit a no. of channels through the same cable ? Is it based on the concept of Bandwidth ? Answer: In a cable TV system, each channel is assigned a range of...
View ArticleSequence of Learning Physics
In what sequence should these chapters be prepared for my exams:- units and dimensions,kinematics,laws of motion,work power and energy,motion of system of particles and rigid body dynamics,gravitation....
View Articlewhy in all the system of units time is always in second?
Please tell me why in all the system of units time is always in second? -Pankaj SharmaContinue reading...
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