Which portion of the electromagnetic spectrum is used to sterilize medical instruments?

a. microwaves

b. visible light

c. ultraviolet light

d. radio waves

e. infrared waves?

Solutions can be separated by chemical means physical means electrolysis solutions cannot be separated

Write a balanced chemical equation for the decomposition of solid sodium sulfide in aqueous solution.

As heat is added to water, is it possible for the temperature measured by a thermometer in the water to remain constant?

Which occurrence would contradict the big bang theory? A) The percentage of carbon dioxide in earths atmosphere increases B) Scientist discover that 99% of the universe's mass is hydrogen C) A radio telescope detects microwave radiation in space D)

Short wavelengths, from high-pitched sounds, cause displacement of the basilar membrane near the oval window. true false

Objects can be accelerating and traveling at constant velocity at the same time. True or False

What kind of star gives rise to a type i supernova? a. white dwarf stars b. massive main sequence stars c. red giant stars?

Example of an object in motion

A proton and an alpha particle are momentarily at rest at a distance r from each other. They then begin to move apart. Find the speed of the proton by the time the distance between the proton and the alpha particle doubles.

Why is it a good idea to extend your bare hand forward when you are getting ready to catch a fast-moving baseball? a. So you can catch the ball with a stiff arm, increasing the time to slow the ball thus deceasing the force. b.