A box is pushed with a force of 30N while 5 N of friction acts in the opposite direction The box accelerates at 1.7 m/s2. What is the mass of the box???

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

How much energy is made when a pice of wood burns. how do you know

Plz mark brainliest 30 points1) find the momentum of a 12 kg snowball that is rolling with a velocity of 9 m/s.2) an 8 ball with a mass of .5 kg is sitting at rest. it is hit by the cue ball (1 kg) traveling at 2.5 m/s. if the cue ball is at rest after the collision, how fast is the 8 ball traveling after the collision? 3) two football players are running toward each other. if the offensive player is 75 kg and is running 8 m/s, how fast must the 60 kg defensive player run in order for the two players to hit and stop?