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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
question a block of mass 2 kg travels along a horizontal frictionless surface with velocity 3 ms. the mass collides
An electron with speed v0 = 1.7 multiplied by 106 m/s is traveling parallel toan electric field of magnitude E = 7.0 multiplied by 103 N/C. How far will the electron travel before itstops?
Assume that the blocks accelerate as shown with an acceleration of magnitude = 0.250 and that the coefficient of kinetic friction between block 2 and the plane is = 0.400. Find out the mass of block 2, , when = 30.0.
what is the bullets time in the air. The heat capacity of ice is 2.09 and that of steam is 2.01.
A Football is kicked at 45degrees and travels 82m before hittingthe ground. What is its initial velocity? How long is it in the air?
A 720-kg race car can drive around an unbanked turn at a maximum speed of 43 m/s without slipping. The turn has a radius of 160 m, What is the coefficient of static friction between the track and the car's tires
A 1500 lb car traveling 80 mph due west is struck by lightening and charged with an enormous negative charge. If the Earth's magnetic field (.3 gauss) just exactly picks up the car while it is still moving, how much charge is there on the car?
In an organ pipe open at one end and closed at the other, the fundamental frequency emitted is 240 Hz. find the next overtone frequency
A solid cylider of mass 9.8 kg and radius 28 cm is yoked to a spring as shown. What is the angular frquency of the cylinder rolling back
Suppose that the separation between two speakers A and B is 4.40 m and the speakers are vibrating in-phase, What is the largest possible distance between speaker B and the observer,
A light ray strikes this material (from air) at an angle of 34.7° with respect to the normal of the surface. Calculate the angle of the reflected ray
with an initial concentration of 25 ppm and an equilibrium concentration of 300 ppm if the time constant for the room
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