Answer:
Explanation:
Let's start by writing the equations of the forces along the two directions:
- Vertical:
where
N is the normal reaction
is the angle between the road and the horizontal
(mg) is the weight of the car, with m being its mass and g the acceleration of gravity
- Horizontal:
where
v is the speed of the car
r is the radius of the turn
Dividing the 2nd equation by the 1st one, we get:
In this problem:
(radius of the turn)
is the speed
Substituting, we find:
= (3,760 joule/sec) / (4,000 joule/sec)
= 3,760 / 4,000 = 0.94 = 94%
I think ....... the answer will be ......
like a theory
<span>Negatively charged particles will go toward the positive end of the magnetic field and positively charged particles will go toward the negative end... for two reasons, because the positive is both repelled by the positive part of the field, and its also attracted by the negative end. oh, and on diagrams, the arrows of magnetic flux usually go from negative to positive.
Hope this helps(:</span>
