ESSENTIAL COSMIC PERSPECTIVE - ACCESS CA
ESSENTIAL COSMIC PERSPECTIVE - ACCESS CA
9th Edition
ISBN: 9780135795125
Author: Bennett
Publisher: PEARSON
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Chapter 11, Problem 56EAP

(a)

To determine

To Find: The surface area of the sphere in square meters.

b.

To determine

The power passing through each square meter of this sphere in watts per square meter.

(c)

To determine

To Explain: The average power per square meter collected by a solar collector on the ground will always be less.

(d)

To determine

To Explain: The direction in which the solar collector on the roof should be oriented, if one wants to optimize the amount of power collected.

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2. A football is kicked at an angle 37.0° above the horizontal with a velocity of 20.0 m/s, as Calculate (a) the maximum height, (b) the time of travel before the football hits the ground, and (c) how far away it hits the ground. Assume the ball leaves the foot at ground level, and ignore air resistance, wind, and rotation of the ball.
Please don't use Chatgpt will upvote and give handwritten solution
Cam mechanisms are used in many machines. For example, cams open and close the valves in your car engine to admit gasoline vapor to each cylinder and to allow the escape of exhaust. The principle is illustrated in the figure below, showing a follower rod (also called a pushrod) of mass m resting on a wedge of mass M. The sliding wedge duplicates the function of a rotating eccentric disk on a camshaft in your car. Assume that there is no friction between the wedge and the base, between the pushrod and the wedge, or between the rod and the guide through which it slides. When the wedge is pushed to the left by the force F, the rod moves upward and does something such as opening a valve. By varying the shape of the wedge, the motion of the follower rod could be made quite complex, but assume that the wedge makes a constant angle of 0 = 15.0°. Suppose you want the wedge and the rod to start from rest and move with constant acceleration, with the rod moving upward 1.00 mm in 8.00 ms. Take m…
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