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John B.
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Physics (Newtonian Mechanics)
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Question:

A bowling ball and a golf ball are simultaneously dropped from a height of 15 ft. Which ball reaches the ground first?

John B.

Both balls reach the ground at the same time. Since the force of gravity is the same for all objects, they accelerate at the same rate. If they accelerate from an initial speed of zero, they have the same rates of descent throughout their entire fall to the ground. Therefore, they reach the ground at the same time.

Pre-Calculus
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Question:

Find the slope of a line that intersects the points (3,2) and (-4, 1).

John B.

To find the slope, m, enter the coordinates of the 2 points as follows: m = (y2 - y1)/x2 - x2) m = (1-2)/(3-(-4)) m = -1/7

Calculus
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Question:

How can I find the area beneath a non linear graph line?

John B.

The first step is to find the equation of the line. The area beneath that line is simply the integral of that equation, bound between the upper and lower limits.

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