Telescopes work by using optics which means light true or false

I don't know what category to put this in so forgive me if it's not the right one

Why arent insulators allowed in operating rooms

Why do atoms have an overall neutral charge?

You have a fixed length of wire and need to design a generator that will produce the greatest peak emf for a given frequency and magnetic field strength.

How should parents raise their intersex children: as girls, boys or intersex?

What is the explanation for how a modern transmission electron microscope (TEM) can achieve a resolution of about 0.2 nanometers, whereas a standard light microscope has a maximum resolution of about 200 nanometers?

Compare and contrast the terms melting and freezing

A medical cyclotron used in the production of medical isotopes accelerates protons to 6.5 MeV. The magnetic field in the cyclotron is 1.9 T.

What is the speed of sound in a vacuum?

An object has 60 j of potential energy and 40 j of kinetic energy. then 10 j of the potential energy is converted into kinetic energy. how much work was done on the object?

At what height above earth's surface is the gravitational acceleration reduced from its sea-level value by 0.40%?