A beam of laser light with a wavelength of =705.00 nm passes through a circular aperture of diameter =0.181 mm. What is the angular width of the central diffraction maximum formed on a screen?

An implanted pacemaker supplies the heart with 72 pulses per minute, each pulse providing 6.0 v for 0.65 ms. the resistance of the heart muscle between the pacemaker’s electrodes is 550 ω. find (a) the current that flows during a pulse, (b) the energy delivered in one pulse, and (c) the average power supplied by the pacemaker.

What is a costume plot? why is it important to a film or theater production?

Decreased sensitivity to an unchanging stimulus is known as