(Please help me this needs to be done ASAP )

Which statement about the atom is true?

A: most of the atoms volume is in the nucleus

B: most of the atoms volume is in its proton(s)

C: most of the atoms mass is found in its electrons

D: most of the atoms volume is empty space

Aplane flies directly between two cities, a and b, which are separated by . from a to b, the plane flies into a headwind. on the return trip from b to a, the wind velocity is unchanged. the trip from b to a takes less than the trip from a to b. what is the airspeed of the plane, assuming it is the same in both directions

Asmall metal bar, whose initial temperature was 10° c, is dropped into a large container of boiling water. how long will it take the bar to reach 70° c if it is known that its temperature increases 2° during the first second? (the boiling temperature for water is 100° c. round your answer to one decimal place.) sec how long will it take the bar to reach 98° c? (round your answer to one decimal place.)

What part of the ear is names after tools, such as the hammer and the anvil?