Answer:
A) Light waves are restricted to a single plane through the lens.
Explanation:
Took the quiz and got it right
The minimum speed needed a non-propelled object to escape from the gravitational influence of a massive body, that is to achieve an infinite distance from it. I think
Answer:


Explanation:
Position of the ball as a function of time is given as


now we know that when ball will attain maximum height then the differentiation of the position with respect to time will become zero
so we have



now the maximum height is given as


I think the answer is 3000 joules since work is force times distance.