Which of the following is a way that microwaves and x-rays are similar? They both have technological uses.

They are both high energy waves.

They are both safe to be exposed to at high doses.

They are used both to transmit information.

What is special about a dc circuit ?

Atank has a shape of a cone with a radius at the top of 2 m and a height of 5 m. the tank also has a 1 m spout at the top of the tank. the tank is filled with water up to a height of 2 m. find the work needed to pump all the water out the top of the spout. (use 9.8 m/s2 for g and the fact that the density of water is 1000 kg/m3.)

Could we see a galaxy that is 20 billion light-years away?