Explanation:
c. if the vector is oriented at 0° from the X -axis.
Answer:
option E
Explanation:
given,
diameter = 4 mm
shutter speed = 1/1000 s
diameter of aperture = ?
shutter speed = 1/250 s
exposure time to the shutter time

N is the diameter of the aperture and t is the time of exposure
now,


inserting all the values

N₂² = 4
N₂ = 2 mm
hence , the correct answer is option E
I think the answer would be C
Answer:
a.) Speed V = 29.3 m/s
b.) K.E = 1931.6 J
Explanation: Please find the attached files for the solution