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Chapter 1: Q2DQ (page 1)
Suppose you are asked to compute the tangent of 5.00meters. Is this possible? Why or why not?
It is not possible to compute the tangent of 5.00meters.
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A car travels in the +x-direction on a straight and level road. For the first 4.00 s of its motion, the average velocity of the car is . How far does the car travel in 4.00 s?
A medical technician is trying to determine what percentage of a patient’s artery is blocked by plaque. To do this, she measures the blood pressure just before the region of blockage and finds that it is , while in the region of blockage it is role="math" localid="1668168100834" . Furthermore, she knows that blood flowing through the normal artery just before the point of blockage is traveling at 30.0 cm/s, and the specific gravity of this patient’s blood is 1.06. What percentage of the cross-sectional area of the patient’s artery is blocked by the plaque?
You have probably noticed that the lower the tire pressure, the larger the contact area between the tire and the road. Why?
Express each approximation of π to six significant figures: (a) 22/7 and (b) 355/113. (c) Are these approximations accurate to that precision?
Neutron stars, such as the one at the center of the Crab Nebula, have about the same mass as our sun but have a much smaller diameter. If you weigh on the earth, what would you weigh at the surface of a neutron star that has the same mass as our sun and a diameter of ?
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