Volleyballl Rolls horizontally along the sand and accerlates at a rate lf 6 m/s/s. The volleyballs mass is 0.25 kg using newtons second law calculate the force that causes acceleration. please help

Order the following from smallest to largest atom, electron, quark, proton, neutron, molecule, nucleus

Which of the following is most likely true about water in chemical systems? a) water dissolves nonpolar ionic compounds. b) water dissociates ionic compounds. c) water dissociates covalent molecules. d) water dissolves nonpolar covalent substances.

In a heat engine of 1000 j of heat enters the system and the piston does 500 j of work what is the final internal energy of the system if the inital energy was 2000 j we have to do all of these down here 1)write the equation 2)list out your know variables 3)plug the numbers into the equations 4)solve 5)write your solution statemtn that includes inital energuy and final energuy added