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A boat can travel 15 km/hr in still water you want to cross a river 1 km wide by traveling east to west. The river is flowing 5 km/hr to the south.
A) If the boat driver wishes to land the boat at a dock on the other side of the river directly oppistie his starting position, answer the following:
1) Which direction should the boat driver point his boat.
2) Find the vector exspression for the boats velocity reletive to the earth.
3) How long does it take him to cross the river.
In a church choir loft, two parallel walls are 5.70 m apart. The singers stand against the north wall. What width of the north wall can she see
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A space of 100 cm3 and one of 300 cm3 seperated by a capillary tube, in which a tap is arranged, connected. How big is the pressure in the related areas
In a student experiment, a constant-volume gas thermometer is calibrated in liquid nitrogen (?196°C), What value of absolute zero does the calibration yield
In a heart pacemaker, a pulse is delivered to the heart 78 times per minute. What is the capacitance of the capacitor
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A ball is thrown horizontally from the top of a tower 30m high and lands 15m from its base. What is the ball's initial speed
The highest string on a guitar has a vibrating length of 60 cm and a vibrating mass of 0.9 g. What is the wavelength of the waves on the string
The E' is an unstable particle, with a mean lifetime on 2.5x10^-10s. What is the minimum uncertainty in this particles energy
question1a cylindrical 3.52 kg pulley with a radius of 0.360 m is used to lower a 4.45 kg bucket into a well. the
The outside mirror on the passenger side of a car is convex and has a focal length of -5.7 m. compute the magnification of the mirror
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