a 2 kg stone is dropped from a height of 100 metres how far does it travel in the third second take gravity as 9.8 m per second squared

Ineed the answer to question 1 , i’m desperate

Which of the choices are parts of an atom? select all that apply. a.) compound b.) electron c.) neutron d.) molecule e.) photon f.) proton g.) element

If 2 different solids have the same masses but different volumes, how will their densities compare? a. the solids will have the same densities. b. the solid with lower volume will have a higher density. c. the solid with greater volume will have a higher density. d. the solid with greater volume will have double the density of the solid with the lower volume.