A) R = 1 / ( (1 / R1)+(1 / R2)+(1 / R3) )
b) I = U / R
c) I1 = U / R1 ... etc.
ANSWER:
Energy loss
EXPLANATION:
When energy is transformed from one form to another, or moved from one place to another, or from one system to another there is some energy loss. This means that when energy is converted to a different form, some of the input energy is turned into a highly disordered form of energy, like heat.Sep 18, 2015
That would be known as the rifling. Helps to make the gun shoot accurately.
Answer:
Part B)
v = 4.98 m/s
Explanation:
Part a)
As the ball is rolling on the inclined the the friction force will be static friction and the contact point of the ball with the plane is at instantaneous rest
The point of contact is not slipping on the ground so we can say that the friction force work done would be zero.
So here in this case of pure rolling we can use the energy conservation
Part b)
By energy conservation principle we know that
initial kinetic energy + initial potential energy = final kinetic energy + final potential energy
so we will have
here in pure rolling we know that
now from above equation we have
now we have
now plug in all values in it