Solution:
Rectangular 129.6 W/m,
4.5 x

Triangular, 117.3 W/m,
2.25 x 

Parabolic
115.6 W/ m,
1.5 x 

So the volume for rectangular, triangular, and parabolic profiles are calculated
C. the rate at which work is done. hope i helped!
Answer:
A common isotope of iron–56 has an atomic number of 26. The total number of subatomic particles in the nucleus is 56.
Answer:
It take 1.78033 second get away
Explanation:
We have given that a car takes 30 m to stop when its speed is 25 m/sec
As the car stops its final speed v = 0 m/sec
Initial speed u = 25 m/sec
Distance s = 30 m
From third law of motion 
So 

Now in second case distance s = 28 m
So 

v = 6.4549 m/sec
Now from first equation of motion v=u+at
So 
t = 1.78033 sec