Apowerful missile reaches a speed of 5 kilometers per second in 10 seconds after its launch. what is the average acceleration of the missile
during this period?
a
0.2 meters/second?
b.
0.4 centimeters/second
c. 0.5 meters/second?
d.
0.5 kilometers/second?

Which change in temperature is the smallest? a change of 1 thomson degree a change of 1 kelvin degree a change of 1 fahrenheit degree a change of 1 celsius degree

What are scientists who study fossils called? ( a ) astronomers. ( b ) biologists. ( c ) geologists. ( d ) paleontologists.

Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.