While photographing his high school track meet, Preston notices that many of his shots where he attempted to capture runners as they sprinted across the finish line appear blurry. What should Preston try so next time his pictures appear clearer?
A. He should use a faster shutter speed.
B. He should use a slower shutter speed.
C. He should increase the aperture.
D. He should adjust the ISO.
cct

Oh my good luck with that i’m sorry you have to do that

Answerordinary

5.66 seconds from when the rock was thrown. first construct an expression to represent the distance from the water to the rock. first account for the starting distance. d = 43 + ? now add in the distance based upon the initial velocity d = 43 + 21t + ? now add in the acceleration due to gravity d = 43 + 21t - 0.5at^2 now substitute the known values into the formula. 5 = 43 + 21t - 0.5*9.8*t^2 subtract 5 from both sides and perform the multiplication 0 = 38 + 21t - 4.9t^2 we now have a quadratic function with a=-4.9, b=21, c=38. using the quadratic formula, we can find the solutions at t = 5.66 and t=-1.37 since the negative time doesn't make sense, the correct value will be t = 5.66 seconds.