Light waves

A) Do not require a medium

B) can not travel through a vacuum

C) are not electromagnetic radiation

D) do not travel in straight lines from the source

I'm new to brainy, but here is my question. Andre, whose mass is 77.1 kg, sits on a diving board above a dunk tank. If he is sitting 0.90 m above the water, what is his total mechanical energy?

A high frequency wave has a short wavelength true or false

Peas can both cross-pollinate and self pollinate. why was this a key factor in Mandela work

Find the force of attraction in newtons between two charges q1 = + 1 c and q2 = - 2 c, if the distance between them is 14 m.

Which type of radio waves have the highest frequency and are used in radar detection? microwaves x-rays waves infrared waves gamma waves

As the width of an opening in a barrier increases, how will the amount of diffraction of the planar waves change as they pass through the opening? A. It will increase. B. It will decrease. C. It will remain the same.

Two forces whose resultant is 100N, are perpendicular to each other. if one of them makes an angle of 60° with the resultant, calculate it's magnitude Calculate the absolute pressure of an ocean depth of 1200atm.

So this is a very logical question but, where did any of us come from? Do note that I am an atheist and I do not believe in God. Why well if God was real then who were his paretns. You cannot tell me that there is just a God with no parents.

Which condition is a neuron in when the outside of the neuron has a net positive charge and the inside has a net negative charge?. Threshold. Action potential. Resting potential

Use combustion by moving pistons which respond to a change in pressure