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The archerfish is a type of fish well known for its ability to catch resting insects by spitting a jet of water at them. This spitting ability is enabled by the presence of a groove in the roof of the mouth of the archerfish. The groove forms a long, narrow tube when the fish places its tongue against it and propels drops of water along the tube by compressing its gill covers. When an archerfish is hunting, its body shape allows it to swim very close to the water surface and look upward without creating a disturbance. The fish can then bring the tip of its mouth close to the surface and shoot the drops of water at the insects resting on overhead vegetation or floating on the water surface. Part A At what speed v should an archerfish spit the water to shoot down a floating insect located at a distance 0.800m from the fish? Assume that the fish is located very close to the surface of the pond and spits the water at an angle 60^circ above the water surface. Part B Now assume that the insect, instead of floating on the surface, is resting on a leaf above the water surface at a horizontal distance 0.600m away from the fish. The archerfish successfully shoots down the resting insect by spitting water drops at the same angle 60^circ above the surface and with the same initial speed v as before. At what height h above the surface was the insect?
A bucket filled with water has a mass of 54 kg and is hanging from a rope that is wound around .050 m radius stationary cylinder. if the cylinder does not rotate and bucket hangs straight down, what is the magnitude of the torque the bucket produc..
How fast is the top of the tree moving (in m/s) just before it hits the ground? Model the tree as straight, rigid rod, and ignore friction and air resistance.
A 54.00 kg bungee jumper has fallen far enough that her bungee cord is beginning to stretch and resist her downward motion. Find out the force (magnitude and direction) exerted on her by the bungee cord at an instant while her downward acceleratio..
If an amount of heat equal to magnitude of the work done by friction is absorbed by the crate of fruit and the fruit reaches a uniform final temperature, what is its temperature change DeltaT.
A golfer drives a 0.046kg golf ball from an elevated tee, giving the ball an initial horizontal velocity of 45 m/s. (a) what is the magnitude of the average force exerted by the club on the ball if the contact time for the golf club on the ball du..
A block with mass m = 19.0 kg slides down an inclined plane of slope angle 17.8 ° with a constant velocity. It is afterwards projected up the same plane with an initial speed 1.35 m/s. How far up the incline would the block move before coming to rest..
In a non-uniform gas, the equation of state is valid locally, as long as the density does not change too rapidly with position. Consider a column of ideal gas under gravity at constant temperature. Find the density as a function of height, by bala..
A lighthouse that rises 49 above the surface of water sits on a rocky cliff that extends 19 from its base. A sailor on the deck of a ship sights the top of the lighthouse at the angle of 30.0 above the horizontal.
Magnitude your response differs from the accurate answer by more than 10%. Double check the calculations. N direction.what is the maximum speed car can have without losing contact with road as it passes this highest point.
Light with a wavelength of 618 nm passes through a slit 7.52 wide and falls on a screen 1.88 m away. compute the linear distance on the screen from the central bright fringe to the first bright fringe above it.
A 2.54 kg particle moving along the x-axis experiences the force shown, where Fmax=6.85 N, Fmin=-6.85 N, d1=1.27 m, d2=2.54 m, d3=3.81 m, and d4=5.08 m. At x=0.00 m the particle's velocity is 3.93 m/s. What is its velocity at x=2.54 m?
An ocean liner leaves New York City and travels 20.0° north of east for 199km. How far east and how far north has it gone? In other words, what are the magnitudes of components of ship's displacement vector in the following directions.
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