As a fish jumps vertically out of the water, assume that only two significant forces act on it: an upward force exerted by the tail fin and the downward force due to gravity. a record chinook salmon has a length of m and a mass of kg. if this fish is moving upward at m/s as its head first breaks the surface and has an upward speed of m/s after two-thirds of its length has left the surface, assume constant acceleration and determine (a) the salmon’s acceleration and (b) the magnitude of the force f during this interval.
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Physics, 22.06.2019 10:50
The temperature at a point (x, y) is t(x, y), measured in degrees celsius. a bug crawls so that its position after t seconds is given by x = 6 + t , y = 8 + 1 3 t, where x and y are measured in centimeters. the temperature function satisfies tx(3, 9) = 5 and ty(3, 9) = 4. how fast is the temperature rising on the bug's path after 3 seconds? (round your answer to two decimal places.)
Answers: 3
Physics, 22.06.2019 12:00
Suppose a wire with a current is pushed upward by a magnetic field. how would the wire move if the direction of the current reversed? explain your answer.
Answers: 1
As a fish jumps vertically out of the water, assume that only two significant forces act on it: an...
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