C is the correct answer.
all substances found on the periodic table are elements by definition. anything that is created using elements, such as methane, carbon dioxide, or water, are all compounds.
A=F/m
a=(3000000)/(20000)
a=15 m/s^2
Work= Force in the direction of displacement*displacement.
You know the force in the direction of displacement (horizontally) and the displacement. So,
W=130*11=1430
Therefore, the work done is 1,430 Joules
A convex mirror makes a reflected light rays spread out.
Well, the acceleration is the difference of speeds divided by the time period.
.
One rev/s is
, so our final result is
.
