This statement about the potential due to the sphere is correct: THE POTENTIAL IS HIGHEST AT THE CENTER OF THE SPHERE.
The potential is highest at the center of the sphere because, charge usually flow from the region of higher potential to lower potential.
Answer:
Explanation:
The marble released through the trap door inside the elevator going upward at a speed vo would have an upward velocity of vo, but begins to experience a downward acceleration g = 9.81m/s^2. This is essentially same as throwing the marble up at a speed of vo. We can solve for the greatest height using the law of energy conservation.
When the marble is traveling up, its potential energy is converted to kinetic energy:
where m is the marble mass and h is the vertical distance traveled from the releasing point to the maximum height.
We can divide both sides by m
This is only partial of the height from the ground. To find the total height we need to add the height from the ground to the release point, which is the distance traveled by the elevator within time t = 2.35s at speed vo
Plug in the value for vo and we can calculate the maximum height
Answer:
The angular displacement is
Explanation:
From the question we are told that
The speed of the driver is
The acceleration of the driver is
The time taken is
The radius of the tire is
The distance covered by the car during this acceleration can be calculated using the equation of motion as follows
Now substituting values
Now the angular displacement of the car with respect to the tire movement can be represented mathematically as
substituting values
Answer: First shot
Explanation:
A) Distance of puck from goal during the first shot = 5m away
Speed of puck during first shot = 10m/s
Time taken to score = ?
Since speed is the distance covered per unit time
i.e speed = Distance / time taken
Time taken = Distance / Speed
Time taken = 5m / 10m/s
= 0.5 seconds
B) Distance of puck from goal during the second shot = 10m away
Speed of puck during second shot = 40m/s
Time taken to score = ?
Recall that time taken = (Distance / Speed)
Time taken = 10m / 40m/s
= 0.25 seconds
It will take 0.5 seconds for the first shot to score whereas it will takes 0.25 seconds for the second shot to score.
Thus, the goalie have a better chance of blocking the first shot since it is slower than the second.