How do refracting and reflecting telescopes use convex lenses and mirrors

Which describes static electricity

Which statement correctly describes the relationship between the energy of a wave and the wave's amplitude? High energy waves have high amplitudes. Low energy waves have high amplitudes. High and low energy waves have the same amplitudes.

Archimedes' principle states that the buoyant force on an object is equal to the density of the fluid it displaces. true or false.

Which part of our solar system contains the most mass? A. the sun B. the various moons C. the asteroid belt D. Earth and other planets

What is a physical quantity?

An experiment is performed to obtain the value of a physical property. If the true (i. e., correct) value of the property is 50 and the measured (i. e., experimental) value is 32, the percent error of the experimental result is:

White moths were found in huge numbers in the city of Birmingham. These moths could be easily camouflaged by the trees. Because of sudden industrial development, the trees in the city were covered with soot.

What two factors determine how fast weathering occurs

A sound that's produced by a single wave at a constant frequency and with no overtones is called

Which of the following is ignored when determining the relative mass of atoms? protons nucleus electrons. neutrons