Which of the following particle has the least mass?
1.neutron
2.proton
3.electron
4.hydrogen nucleus

Part a constants huck finn walks at a speed of 0.60 m/s across his raft (that is, he walks perpendicular to the raft's motion what is huck's velocity (speed and direction) relative to the river bank? express your answer to three significant figures and include the appropriate units. relative to the shore)

Drag each item into the proper state of matter category.

Blank liquids and gases exert a buoyant force on objects placed in them