Two infinitely long solenoids thread a circuit. the magnitude of b inside each solenoid is the same and is 300 t at time t = 0. bin bout il im ir r2 rl rm rr r1 a a a what is the magnitude of the current im in middle resistor rm? a = 0.7 m , r1 = 0.2 m , r2 = 0.1 m , ∆b ∆t = 160 t/s , rl = 8.4 ω , rm = 5.9 ω , and rr = 1.1 ω . answer in units of a.

Suppose a diode consists of a cylindrical cathode with a radius of 6.200×10^−2 cm , mounted coaxially within a cylindrical anode with a radius of 0.5580 cm . the potential difference between the anode and cathode is 260 v . an electron leaves the surface of the cathode with zero initial speed (v initial=0). find its speed vfinal when it strikes the anode.

Infrared radiation has wavelengths that are shorter than visible light is part of the visible light spectrum has wavelengths that are longer than visible light has the same wavelengths as ultraviolet radiation

Which of the following conditions lead you to see an absorption line spectrum from a cloud of gas in interstellar space? the cloud is extremely hot. the cloud is visible primarily because it reflects light from nearby stars. the cloud is cool and lies between you and a hot star. the cloud is cool and very dense, so that you cannot see any objects that lie behind it.