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A river with the width of 800 m flows due south with a speed of 2.0 m/s. A man steers a motorboat across the river; his velocity relative to the water is 4.2 m/s due east.
a. How far south of his starting point will he reach the opposite bank?
b. In which direction should the motorboat head in order to reach a point on the opposite bank directly east from the starting point with the same boat speed relative to the water of 4.2 m/s?
c. What is the velocity of the boat relative to the earth?
d. How much time required to cross the river?
The induced electric field 15 from the axis of a solenoid with a 10 radius is 46. Find the rate of change of the solenoid's magnetic field
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The distance between deer B and C is 92 m. What is distance between deer A and C.
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A human hair is placed directly in front of the opening of a laser pointer. The light has a wavelength of 647.8 nm. Determine the approximate thickness of the hair
An unmanned spacecraft of mass 459 kg, is in a circular orbit around the earth, observing the earth's surface from an altitude of 58.3km. What is the period of the spacecraft's orbit
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