Answer:
The width of the frame is 0.0746 meters
Step-by-step explanation:
We are told that after the frame has been attached to the solar collector, the area that is left exposed is . As we see in the figure, the dimensions of this area are
and
where is the width of the frame.
The product of these dimensions must equal the exposed area:
Now since and we have:
we expand this and solve for x using the quadratic formula:
we get two solutions:
We take the second solution i.e , because first one gives a width larger than the dimensions of the solar collector which cannot be possible.
Thus the width of the frame is 0.0746 meters.
Linear velocity is given by the formula v = ωr, where ω is the angular velocity in radians, and r is the radius.
We first solve for ω:
11 revs/sec = (11 revs/sec) x (2πrad/rev) = 22π rad/sec.
(note: 2πrad/rev means that there are 2π radians in one revolution)
v = ωr; where v is in meters per second
v = (22π rad/s)(7.2 cm)(10⁻² m/1 cm) = 4.976 m/s
9/10-2/11
= 99-20/110
= 79/110
In sixty days, assuming that Kevin shoots exactly fifty baskets everyday, he'd have shot 3,000 baskets. (multiply 60 x 50 = 3,000)
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