Anybody interested in G oogle meet then I will give a code of greeting

Let w=23 . what is the value of w + 45 ?

If the speed of an electromagnetic wave is 100,000 cm/s and its wavelength is 100 cm, what is its frequency? a) 100,000 cycles per second (hz) b) 1 × 10-3 cycles per second (hz) c) 10,000,000 cycles per second (hz) d) 1,000 cycles per second (hz)

Asphere has a diameter of 10 in. what is the volume of the sphere?