Answer:
The newton (lowercase n!) is a derived unit because its definition consists of multiplication of three defined base units and nothing else. Its meaning is thus derived, not independently defined.
Pearl Ash is an example of an Impure Potassium Carbonate
Answer:
0.36 rad/s
Explanation:
from the question we are given the following:
width of the door (w) = 1 m
length of the door (L) = 2 m
mass of the door (Md) = 40 kg
mass of mud (Mm) = 0.7 kg
velocity of the mud (V) = 14 m/s
angular speed = ?
we can get the angular speed by equating the initial angular momentum to the final angular momentum
initial angular momentum of the mud = final angular momentum of the mud and door
m x v x \frac{r}{2} = ( + m) x ω
note that r is divided by 2 because the mud hit the door at its center which is half of its width
0.7 x 14 x \frac{1}{2} = ( + (0.7 x )) x ω
ω = + (0.7 x ))}[/tex]
= 0.36 rad/s