ANSWER THIS QUESTION! Consider the car driving around a circular track. Once started, the driver maintains a speed of 45 m/h. Compare the driver's velocity with his acceleration in this case. A) The car is accelerating because it is changing direction but the velocity is constant. B) The car is traveling at a constant rate of speed so it is not accelerating and the velocity does not change. C) Acceleration is the change in velocity so the car is experiencing a change in velocity and it is accelerating. D) The car is traveling at a constant rate of speed so it is not accelerating but the velocity changes because the direction the car travels is constantly changing.

C) Acceleration is the change in velocity so the car is experiencing a change in velocity and it is accelerating.

Explanation:

Acceleration is defined as the rate of change of velocity per unit of time and velocity is defined as the speed of something in a given direction. The car is on a circular track, so it is constantly changing direction and therefore is constantly changing in velocity and accelerating. With this, we can eliminate choices A, B, and D since they either state that the car is not accelerating or not changing in velocity, leaving us with choice C) Acceleration is the change in velocity so the car is experiencing a change in velocity and it is accelerating.

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in the year 2850, humans successfully colonized mars. the martian modules that were constructed could hold only a small population of people. it is now a century later, and the population on mars has grown to 600 people. of the current mars population, 45 people express the recessive phenotype for phenylketon- uria (pku) syndrome (pp genotype).

explanation: