The spectrum produced by a prism or a raindrop is evidence that the average speed of light in the material depends on the light'
1 answer:
You might be interested in
Answer:
Explanation:
As we know that box was initially at rest
so here work done by all forces on the box = change in its kinetic energy
so we will have
now we have
m = 10 kg
L = 3.5 m
so we will have
so final speed is given as
Answer:
0.3858 Nm
Explanation:
The torque of the couple is the dot product of the force vector and the couple vector from 1 end of the ruler to the center. This equals to the product of their magnitude times the cosine() of the angle made by their direction: