Answer:
v = 5.38 m/s
Explanation:
Given that,
A tennis ball is dropped from 1.48 m above the ground, d = 1.48 m
It rebounds to a height of 0.956 m
We need to find the velocity of the ball when it hits the ground. Using equation of kinematics as follows :
So, when the ball hits the ground, its velocity is 5.38 m/s.
First we figure out how many seconds that is
9,390,000,000
then divide by 60 to get how many hours that is<span>
</span>
156,500,000
now divide by 24 to get the number of days
6520833 and 1/3
that is how many days it is
Answer:
Lightning
Explanation:
Air is a non-conductor of electricity because it does not have free electrons to carry the current. But when there is a high voltage, as in the case of lightning, the molecules of air get ionized and electrons are available to flow to make the current and conduct electricity through the air.
Answer:
B is excellent answer..............
Answer:
Explanation:
The acceleration of an object is the rate of change of velocity. The mathematical expression for the acceleration of an object is given by :
Where
v and u are final and initial velocities
t is time
or we can write acceleration as :
Hence, this is the required solution.