The car has an initial velocity of 23 m/s and a final velocity of 0 m/s. Recall that for constant acceleration,
The car stops in 7 s, so the acceleration is
Answer:
Explanation:
The work done on the capacitor is equal to the difference in potential energy stored in the capacitor in two different cases.
The potential energy is given by the following formula:
where C can be calculated using the plate separation and area.
Therefore, the potential energy in the first case is
In the second case:
The permittivity of the air is very close to that of vacuum, which is 8.8 x 10^-12.
So, the difference in the potential energy is
Answer:
<u>The magnitude of the friction force is 8197.60 N</u>
Explanation:
Using the definition of the centripetal force we have:
Where:
- m is the mass of the car
- v is the speed
- R is the radius of the curvature
Now, the force acting in the motion is just the friction force, so we have:
<u>Therefore the magnitude of the friction force is 8197.60 N</u>
I hope it helps you!
16 across=freezing
14 across= liquid
12 down= density
i cant see the rest of the numbers on the crossword
Recall that
where and are the skateboarder's velocity, respectively; is her acceleration; and is the change in her position.
Substitute everything you know and solve for :