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Upon spotting an insect on a wing overhanging water, an archer fish squirts water drops at the insect to knock it into the water. Although the fish sees the insect along a straight line path at angle ? and distance d, a drop must be launched at a different angle θ0 if its parabolic path is to intersect the insect. If ? = 360o and d = 0.900m, what launch angle θ0 is required for the drop to be at the top of the parabolic path when it reaches the insect?
An 85-kg jogger is heading due east at a speed of 2.5 m/s. A 55-kg jogger is heading 24° north of east at a speed of 3.7 m/s. Find the magnitude and direction of the sum of momenta of the two joggers.
If a diverging lens of focal length -69.0 cm is then placed 29.0cm from the first lens on the opposite side of the lens from theobject, what is the location of the new image
A coin sits on a rotating turntable at a distance of 8 cm from the center of the table. When the turntable spins at 33 rmp, What is the centripetal acceleration of the coin
A cannon ball (m=.7 kg) traveling at 200m/s hits and is impeded into a 400 kg car. If the car was initially at rest, what will be its velocity after the impact
a 0.45 kg mass vibrates according to the equation x 0.49 cos 8.45t where x is in meters and t is in seconds.a
A 600 gram particle (initially at rest at the origin) is subjected to a force of F=15i+20j (N), calculate the average power produced by this force
two balls of identical mass of 2.050 kg and with identical charges placed on them hang from the ceiling on identical
In the Blackhawk landslide in California, a mass of rock and mud fell 465 m down a mountain and then traveled 8.3 km across a level plain. How fast was it traveling when it reached the bottom
A certain laboratory experiment requires an aluminum wire of length of 25.0 m and a resistance of 3.10 ohms at 20.0 degree Celsius
Use Pascal's principle. Given that Fout is 87 lb., the areas of the output and input cylinders are Aout 29 in2 and Ain 6 in2, what is the input force
A solid, uniform ball roll without slipping up a hill as shown. Initially, at the bottom of the hill, the ball has a linear speed of 25.0 m/s. How far from the foot of the cliff does the ball land
A 0.51 kg mass at the end of a spring vibrates 9.0 times per second with an amplitude of 0.18 m. Determine the total energy of the system
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