1013 - Physics Questions Answers
A GENERAL MESSAGE
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MAXIMUM VELOCITY IN SHM IS Vm. FIND AVERAGE VELOCITY OF MOTION FROM ONE EXTREME TO ANOTHER....
The gravitational field in a region is given by :
E= 5 N/ kg i 12 N/ kg J
If the potential at the origin is taken to be zero,
then the ratio of the potential at the points (12m, 0) and (0, 5m) is ??
TWO BALLS OF MASSES M EACH ARE MOVING AT RIGHT ANGLE TO EACH OTHER WITH VELOCITIES 6m/s AND 8m/s RESPECTIVELY. IF COLLISION IS PERFECTLY INELASTIC THEN WHAT IS THE VELOCITY OF COMBINED MASS
A BODY OF MASS M FALLS FROM H HEIGHT ON GROUND. IF e IS COEFFICIENT OF RESTITUTION OF COLLISION BETWEEN BOY N GROUN THEN WHAT IS THE DISTANCE TRAVELLED BY BOY BEFORE IT COMES TO REST
a large number of identical point masses m are placed along x-axis , at x=0,1,2,3,4.....the magnitude of gravitational force on mass at origin (x=0), will be ??
If r0 = 20869 χ 10-10 m and E0 /KB= 10.22 K for He calculate and plot the Lennard Jones potential? Set one molecule at a fixed (pinned) position on the x-axis, say at x = 5 nm. The other molecule starts at the origin with initial velocity v0 =v0 (x cosβ +y sinβ) where β is small angle between v0 and the x-axis. Develop a computer program to calculate the trajectory of the moving particle in the x-y plane for various v0 and β , based on (a) the rigid-elastic-sphere assumption and (b) the intermolecular force field. Comment on the differences between the results obtained from the two models?
1.)Why only mercury is used in barometers?
2.)Is pressure scalar or vector? How?
If two discs of moment of inertia a and b rotating about collinear axis passing through their centres of mass and perpendicular to their plane with angular speeds c and d respectively in opposite directions are made to rotate combinedly along same axis, then the magnitude of angular velocity of the system is?
If two discs of moment of inertia a and b rotating about collinear axis passing through their centres of mass and perpendicular to their plane with angular speeds c and d respectively in opposite directions are made to rotate combinedly along same axis, then the magnitude of angular velocity of the system is?