HURRY! Which are characteristics of a ray when it hits a boundary and reflects, but not when it hits the boundary and refracts? Check all that apply.

changes direction

changes speed

does not change direction

does not change speed

bounces off the boundary

passes through the boundary

Anybody wanna ? (picture included? )

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.

Avery long solenoid of inner radius 2.75 cm creates an oscillating magnetic field of the form = for this solenoid, =0.00425 t and =319 rad/s. (a)what is the maximum value of the induced electric field at a perpendicular distance 1.45 cm from the axis of the solenoid? (b) what is the maximum value of the inducted electric field at a point 5.85 cm perpendicular from the axis of the solenoid?