Two bodies P and Q, are in thermal equilibrium, which of the following statements about the bodies is correct?
A. the temperature of Q is higher than that of P B. P and Q have the same heat capacity C. P and Q have the same mass D. P and Q are at the same temperature Correct Answer: Option D D. P and Q are at the same temperatureA machine of efficiency 8% is used to raise a body of mass 75kg through a vertical height of 3m in 30s. Calculate the power input. (g = 10ms‾²)
A. 9.4W B. 60.0W C. 75.0W D. 93.8W Correct Answer: Option D D. 93.8WUsing the force-displacement diagram shown below. Calculate the work done.
A. 2000J B. 1000J C. 20J D. 5J Correct Answer: Option A A. 2000JThe period of oscillation pf a particle executing simple harmonic motion is 4π seconds. If the amplitude of oscillation is 3.0m. Calculate its period
A. 1.5ms‾¹ B. 3.0ms‾¹ C. 4.5ms‾¹ D. 6.0ms‾¹ Correct Answer: Option A A. 1.5ms‾¹The bob of a simple pendulum takes 0.25s to swing from its equilibrium position to one extreme end. Calculate its period.
A. 0.25s B. 0.50s C. 0.75s D. 1.00s Correct Answer: Option D D. 1.00sProducts
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