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As a fish jumps vertically out of the water, assume that only two significant forces act on it: an upward force F exerted by the tail fin and the downward force due to gravity. A record Chinook salmon has a length of 1.50 m and a mass of 54.0 kg. If this fish is moving upward at 3.00 m/s as its head first breaks the surface and has an upward speed of 7.10 m/s after two-thirds of its length has left the surface, assume constant acceleration and determine the following. (a) the salmon's acceleration m/s2 upward (b) the magnitude of the force F during this interval N
The average resistivity of the human body is 5 ohm*m. The conducting path between two hands is approximated as a cylinder with length 1.6m, what is the resistance between the hands
What is the velocity of q_{2} when the balls are 0.450 m apart. what is the speed that the bar falls.
Two identical piano wires have a fundamental frequency of 491 Hz when kept under the same tension. when both wires oscillate simultaneously
Unpolarized light of intensityI0is incident on three polarizing filters. The axis of the first is vertical, that of the second is29° from vertical, and that of the third is horizontal. What light intensity emerges from the third filter?
Blocks A (mass 6.50kg ) and B (mass 15.00kg ) move on a frictionless, horizontal surface. Initially, block B is at rest and block A is moving toward it at 10.0m/s . The blocks are equipped with ideal spring bumpers.
Suppose a tank contains 737 m3 of neon (Ne) at an absolute pressure of 1.01 105 Pa, What is the increase in the internal energy of the neon
A rectangular loop of wire with sides 0.20 and 0.35 m lies in a plane perpendicular to a constant magnetic field. Assuming the loop is complete, in which direction will any induced current flow
A small circular hole 5.00 mm in diameter is cut in the side of a large water tank, 13.0 m below the water level in the tank. Find the speed at which the water shoots out of the tank
Tendons are strong elastic fibers that attach muscles to bones. To a reasonable approximation, they obey Hooke's law. How much energy is stored in it at that point
A proton is projected perpendicularly into a magnetic field that has a magnitude of 0.50 T . The field is then adjusted so that an electron will follow a circular path of the same radius when it is projected perpendicularly into the field with the s..
A 1000 watt hair dryer is connected to 120 V source. Find the current drawn by the hair dryer
The velocity-time graph of part of a cyclist's trip consists of a straight line between v = 18.0 m/s at t = 13.0 s and v = 0 at t = 25.0 s
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