Answer:
Velocity of throwing = 34.335 m/s
Explanation:
Time taken by the tennis ball to reach maximum height, t = 0.5 x 7 = 3.5 seconds.
Let the initial velocity be u, we have acceleration due to gravity, a = -9.81 m/s² and final velocity = 0 m/s
Equation of motion result we have v = u + at
Substituting
0 = u - 9.81 x 3.5
u = 34.335 m/s
Velocity of throwing = 34.335 m/s
Answer:
a) 2232nm
b) 2511nm
Explanation:
a) To find the path difference Δl you use the following formula:

m: order of a bright fringe
λ: wavelength of light = 558nm
for m=4:

b) The path difference for the case of destructive interference you have:

m: order of a dark fringe
for m=4:

Answer:
mathematician, physicist, astronomer, theologian and author.
Explanation:
Greatest mathematician and the most influential scientist of all time.