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A Carnot refrigerator operates between 250K and 300K. Calculate its coefficient of performance.
The given data that we can list here are, Hot reservoir temperature T₁ = 300K Co…
Efficiency of a Carnot cycle is 75%. If temperature of the hot reservoir is 727ºC, calculate the temperature of the cold reservoir.
The given data in this question is, Efficiency η = 75% = 0.75 Hot reservoir T₁ = 727º…
A system releases 130 kJ of heat while 109 kJ of work is done on the system. Calculate the change in internal energy
Before we write the given data let us first mention some sign convention that we use w…
Potential energy of a particle performing linear S.H.M is 0.1 π² x² joule. If mass of the particle is 20 g, find the frequency of S.H.M.
The data available in the sums is, Joule mass m = 20g = 0.020kg To find , Frequency …
The total energy of a body of mass 2 kg performing S.H.M. is 40 J. Find its speed while crossing the centre of the path.
The given data from the question can be listed as, mass m = 2kg Total Energy E = 40J T…
A simple pendulum of length 100 cm performs S.H.M. Find the restoring force acting on its bob of mass 50 g when the displacement from the mean position is 3 cm.
The data that we can put forward from this question is , Length L= 100cm = 1m Mass m …
A simple pendulum performs S.H.M of period 4 seconds. How much time after crossing the mean position, will the displacement of the bob be one third of its amplitude.
As per the given question we can put some data like, Period T= 4s displacement is, T…
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A simple pendulum of length 100 cm performs S.H.M. Find the restoring force acting on its bob of mass 50 g when the displacement from the mean position is 3 cm.
The data that we can put forward from this question is , Length L= 100cm …