A gas burner applied 6000 J of thermal energy to a system that caused the internal energy of the system to increase by 4000 J. What accounts for the missing 2000 J of energy?

F500 j of energy were added to 1 kg of each of these samples, which would experience the least temperature increase?

The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is

Consider a uniformly charged ring in the xy plane, centered at the origin. the ring has radius a and positive charge qdistributed evenly along its circumference. a)what is the direction of the electric field at any point on the z axis? . b)what is the magnitude of the electric field along the positive z axis? use k in your answer, where k=14πϵ0. d)the ball will oscillate along the z axis between z=d and z=−d in simple harmonic motion. what will be the angular frequency ω of these oscillations? use the approximation d≪a to simplify your calculation; that is, assume that d2+a2≈a2. express your answer in terms of given charges, dimensions, and constants