John starts going 22.5 m/s for 10 seconds he then speeds up to 43.5 m/s for 18 seconds what is his accleration during that time?

Can someone me with 6 to 10 plz this is for masteries test.

Count the number of each type of atom in the equation below, and then balance the equation. write in the numbers of atoms and coefficients. add a 1 if there should be no coefficient. cs2(l) + o2(g) → co2(g) + so2(g) c [ ] s [ ] o > c [ ] s [ ] o [ ] cs2(l) + [ ] o2(g) > [ ] co2(g) + [ ] so2(g)

Which element is least likely to undergo a chemical reaction