Mechanical waves require a medium to transfer their energy which of the following is a mechanical wave?

surface wave
radio waves
microwaves
light waves

Avalue that describes how heavy an object is and is related to the force of gravity is

Which of the following statements comparing electron microscopy and light microscopy is false? which of the following statements comparing electron microscopy and light microscopy is false? both the electron microscope and the light microscope use the same wavelengths for illumination. images produced by light microscopes can be in color, whereas electron microscope images are black and white unless they are artificially colored. the electron microscope has greater resolution than the light microscope. electron microscopes can allow examination of viruses and internal cell structures, whereas light microscopes are limited to objects that are 0.5 micrometers and larger. request answer

If you held a stone over the mouth of a well and then let it go , what would happen to the stone? explain your answer.