Determine how fast are the waves moving
A group of swimmers is resting in the sun on an off-shore raft. They estimate that 4.8 m separates a trough and an adjacent crest of surface waves on the lake. They count 16 crests that pass by the raft in 13 s. How fast are the waves moving?
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Perry and Wolf define software architecture as some combination of elements, form,and rationale. Express, in your own words, the meaning of each of these terms with respect to developing a software system. Give an example of each in terms of the
Bonnie and Clyde are sliding a 317 kg bank safe across the floor to their getaway car. The safe slides with a constant speed if Clyde pushes from behind with 369 N of force while Bonnie pulls forward on a rope with 359 N of force.
A projectile is fired horizontally from a gun that is 59.0 m above flat ground, emerging from the gun with a speed of 473 m/s. (a) How long does the projectile remain in the air? (b) At what horizontal distance from the firing point does it strike
A cord is wrapped around a pulley of mass m and radius r. Use energy methods to show that the block's speed as a function of position d down the incline is
When the National Labor Relations Act, aka, The Wagner Act was approved by Congress some categories of workers were excluded from the protections provided by the federal labor legislation.
A child pulls a 3.00-kg sled across level ground at constant velocity with a light rope that makes an angle 34.0° above horizontal. The tension in the rope is 5.00 N. Assuming the acceleration of gravity is 9.81 m/s2, what is the coefficient o
A magnifying glass has a converging lens of focal length of 18.8 cm. At what distance from a nickel should you hold this lens to get an image with a magnification of +2.47?
What is the net charge on the electroscope? Wouldn't the electrons from the earth be attracted to the positive charge?
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