Answer:

Explanation:
Given that,
Initial speed of a car, u = 13 m/s
Final speed of a car, v = 25 m/s
Time, t = 5 s
We need to find the acceleration of the car during this 5.0 second time interval. Let a is the acceleration. It can be calculated as :

So, the acceleration of the car is
.
A decrease in mass will decrease an objects weight because
weight = mass x gravitational constant
It would be a high pitched sound. Hope this helps.
Well, with the light spectrum there technically is no middle color. Both green and yellow meet up in the middle at 560 nm (wavelength interval) and 540 THz (frequency interval).