Three moles of an ideal gas undergo a reversible isothermal compression at 22.0°c. during this compression, 1700 j of work is done on the gas. what is the change in entropy of the gas? (j/k)

What is the answer for this. the correct answer only

The material that keeps its new shape after it is stretched is called?

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