What is the frequency of a beam of light traveling through a vacuum with a wavelength of 6 x 10-5m? The speed of light in a
vacuum is 3.00 x 108m/s.
{5.0x10^12 Hz}

Which is an example of gaining a static charge by conduction? a) rubbing a balloon against your hair. b) shuffling your shoes across a carpet. c) bringing a charged rod near an electroscope. d) touching your car on a cold day and getting a shock.

Determine the change in width a, height b, thickness t when a plate is subjected to the uniform distributed load and is made of material having modulus of elasticity e=230 gpa and poisson's ratio ν=1/3. given : a=400 mm and b= 300 mm also the uniformly distributed load in downward y direction of plate is 2 mn/m and in the positive x direction is 3 mn/m and t=20 mm

If an electric circuit is not grounded it is best to reach out and touch it to provide the ground a.true or b.false