Light of a certain wavelength passes through a pair of double slits with separation
18.00 micrometers (um) and falls on a
screen. If the angle between the center and
1st interference maximum is 1.500°, what is
the wavelength in nanometers (nm)?
[?] nm

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.

Glass has a hardness that is in the middle of the hardness scale. what is the hardness of glass?

Can you match these to the correct definition