What is the magnitude of the charge, in coulombs, of a lithium nucleus containing three protons and four neutrons? (charge of a proton is 1.6 x 10-19 c)?

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)