Physics

For what value of displacement the kinetic energy and potential energy of a simple harmonic oscillation become equal?

When two soap bubbles of radii a and b (b > a) coalesce, the radius of curvature of common surface is:

A Carnot's engine working between 400 K and 800 K has a work output of 1200J per cycle. The amount of heat energy supplied to the engine from the source in each cycle is:

A solenoid of 1000 turns per meter has a core with relative permeability 500. Insulated windings of the solenoid carry an electric current of 5 A. The magnetic flux density produced by the solenoid is: (permeability of free space = 4π*10^-7H/m)

A polyatomic ideal gas has 24 vibrational modes. What is the value of γ ?

The output of the given combination gates represents:

A modern grand - prix racing car of mass m is traveling on a flat track in a circular arc of radius R with a speed v. If the coefficient of static between the tyres and the track is µs, then the magnitude of negative lift F acting downwards on the car is : (Assume forces on the four tyres are identical and g = acceleration due to gravity)

Which level of the single ionized carbon has the same energy as the ground state energy of hydrogen atom?

A mass M hangs on a massless rod of length l which rotates at a constant angular frequency. The mass M moves with steady speed in a circular path of constant radius. Assume that the system is in steady circular motion with constant angular velocity ω. The angular momentum of M about point A is LA which lies in the positive z direction and the angular momentum of M about point B is LB. The correct statement for this system is:

A boy is rolling a 0.5 kg ball on the frictionless floor with the speed of 20ms⁻¹. The ball gets deflected by an obstacle on the way. After deflection it moves with 5% of its initial kinetic energy. What is the speed of the ball now?