1. What is all matter made of?

bonds

cells

electrons

atoms

U-238, the common isotope of uranium, has 92 protons, 146 neutrons, and 92 electrons. U-235 is another isotope of uranium. How do the number of subatomic particles of U-238 and U-235 differ? A. U-238 has three more electrons than U-235. B.

Today's computers use millions of transistors. What is one reason they are used? A. Transistors store information. B. Transistors burn out quickly, so many replacements are necessary. C.

What exerts a centripetal force on a person running around a curve?

Which of the following is true about the law of conservation of energy? Energy can be destroyed Energy can be created Energy can be converted from one form to another All of the above are correct

To travel from australia to south africa which direction would you go

Ursa Minor contains the pole star, Polaris, and the asterism known as the Little Dipper. From most locations in the Northern Hemisphere, all of the stars in Ursa Minor are circumpolar.

What is an organism ability to maintain a steady internal condition called

What is the fundamental frequency of a particular medium?. a. the lowest frequency at which a standing wave is possible. b. the highest frequency at which s standing wave is possible

The distance from the inner core to the surface of the earth is about 5,200 kilometers. the large amount of material surrounding the inner core places tremendous pressure on it.

What type of wave is sound? longitudinal light surface transversal