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A 300 g bird flying along at 5.5 m/s sees a 10g insect heading straight toward it with a speed of 25 m/s (as measured by an observer on the ground, not by the bird). The bird opens its mouth wide and enjoys a nice lunch.
What is the bird's speed immediately after swallowing?
_____m/s
A fire hose 10 cm in diameter delivers water at the rate of 21kg/s . The hose terminates in a nozzle 2.6cm in diameter. What is the flow speed in the nozzle
A stone is tied to a string (length = 0.750 m) and whirled in a circle at the same constant speed in two different ways. Determine the speed of the stone
A 60.0-kg skier with an initial speed of 12.0 m/s coasts up a 2.50-m-high rise as shown in Figure 8. Find her final speed at the top
A 2.0-kg solid cylinder of radius 0.5 m rotates at a rate of 40 rad/s about its cylindrical axis. What power is required to bring the cylinder to rest in 10 s
Suppose that you wish to fabricate a uniform wire out of 1.00 g of copper. Assume the wire has a resistance R = 0.700 ?, What will be the length of the wire in µm
A sensitive gravimeter at a mountain observatory finds that the free-fall acceleration is 9.00×10?3m/s2 less than that at sea level
Assume you are swimming in a river while a friend watches from the shore. In calm water, you swim at a speed of 1.25 m/s. The river has a current that runs at a speed of 1m/s.
A bumper car with mass m1 = 113 kg is moving to the right with a velocity of v1 = 4 m/s. A second bumper car with mass m2 = 94 kg is moving to left with a velocity of v2 = -3.2 m/s.
A circus performer stretches a tightrope between two towers. He strikes one end of the rope and sends a wave along it toward the other tower. He notes that it takes the wave 0.675 s to reach the opposite tower, 20.0 m away. If a 1 meter length of ..
A child goes down a playground slide with an acceleration of 1.30. Find out the coefficient of kinetic friction between the child and the slide if the slide is inclined at an angle of 34.0 below the horizontal.
Two balls are on a frictionless horizontal tabletop. Ball X initially moves at 10 meters per second, which angle and at what velocity will ball y move
an airplane travels 85 km,62degrees north of east. Its displacement is represented by the vector A in the drawing
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