Answer:
The faster an object moves, the more kinetic energy it has. The more mass an object has, the more kinetic energy it has.
Explanation:
We know that:
w=mg
24,5N=m*9,8m/s²
24,5N/9,8m/s²=m
m=2,5kg
Ca(s) + O₂(g)→ 2 CaO (s)
The sequence of coefficient that will balance the above equation is
2,1 ,2
Explanation
Coefficient is the number in front of the formulas.
When balancing the equation the number of atoms in reactant side must be equal to number of atoms in product side.
The sequence that balance the equation above is 2,1,2 therefore the balanced equation is as below.
2Ca (s) + O₂ → 2CaO (s)
Answer:
1260 Nm
Explanation:
As one end of the lever makes contact at the point right below the dumpster center of mass and has a distance of 0.3 m to the lever pivot point, plus the fact that the level is also approximately horizontal, we can safely assume that the dumpster gravity is directly perpendicular to the level.
This would make the torque caused by the dumpster gravity on the level is
T = LF = 4200*0.3 = 1260 Nm
