What is the energy now stored if the capacitor was disconnected from the potential source before the separation of the plates was changed? constants a parallel-plate vacuum capacitor has 8.66 j of energy stored in it. the separation between the plates is 3.10 mm if the separation is decreased to 1.15 mm γ ασφ. ? u = submit request answer part b what is hanaod mained connected to the potential sour while the sep f the plates was ergy now stored if the γυ ας φ ?

The mini-refrigerator fire was most likely caused by what type of wiring?

Select all of the following that are equal to an impulse of 20 unitsa) force= 5, time= 5.5b) force= 25, time= 0.8c) force= 0.1, time= 200d) force= 10, time= 2(its b, c, and d)(also in order to find answer they have to add to get the unit)ex= 25x.8=20 or .1x200=20

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