c. What did you notice with the acceleration values obtained by the different items? What do you think caused the variations in these values?

Variation in the values of acceleration occurs due to the different in the final velocity of different items.

The acceleration values obtained by the different items varies from one another because of different mass as well as final velocity. Acceleration depends on both mass of an object as well as velocity. We know that acceleration is the time rate of change of velocity.

So if the change occur in velocity we also experience change in the acceleration of that object so we can conclude that variation in the values of acceleration occurs due to the different in the final velocity of different items.

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Explanation:

The given table gives the acceleration of an object for the different items at 50 N force.

Force acting on an object is given by :

As,

where u and v are initial and final velocities

It can be noticed that, as the mass of the object increases and final velocity decreases, the value of acceleration also decreases. It is maximum when the mass is least and the final velocity is most. As mass and velocity is changing, it will cause the change in variations of the value of a.

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2

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