A dielectric is inserted between the plates of an isolated, charged capacitor. As the dielectric is being inserted, will the electric field between the plates and the electric potential difference across the plates of the capacitor increase, decrease, or remain the same

In the circuit shown below, with each bulb holding a resistance of 60 ohms, how many amps of current are flowing? express your number as a decimal.

Which accurately compares concave and convex lenses?

Aspring is used to stop a 50-kg package which is moving down a 20º incline. the spring has a constant k = 30 kn/m and is held by cables so that it is initially compressed 50 mm. knowing that the velocity of the package is 2 m/s when it is 8 m from the spring and neglecting friction, determine the maximum additional deformation of the spring in bringing the package to rest.