- Heat and Thermodynamics
- Mechanics part 1
- Modern Physics
985 - Questions Answers
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the Q factor of a sonometer wire is 2 x 10³ . on plucking it makes 240 vibrations per second. calculate the time in which amplitude decrease to half the initial value.
a car from rest and moves with constant acceleration.the ratio of distance covered by the car in nth second to that covered in n seconds is
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?