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Question1
An airplane with a speed of 79 m/s is climbing upward at an angle of 48° counter clockwise from the positive x axis. While the plane's altitude is 540 m the pilot releases a package.
(a) Analyse distance along the ground, measured from a point directly beneath the point of release, to where the package hits the earth.
(b) Find out an angle of the velocity vector of the package just before impact.
Question2
A shower stall has dimensions 86.0 cm 86.0 cm 210 cm. suppose the stall acts as a pipe closed at both ends, with nodes at opposite sides. Imagine singing voices range from 130 Hz to 2 000 Hz and let speed of sound in the hot air be 355 m/s. For someone singing in this shower, which frequencies would sound the richest (since of resonance)? For L = 0.860 m
Your airplane is caught in a brief, violent downdraft. To your amazement, the pretzels on your seatback tray rise vertically, What's the downward acceleration of the plane
A student uses an audio oscillator of adjustable frequency to measure the depth of a water well. how many antinodes are in the standing wave
A ski jumper takes off at an angle 20 degrees above the horizontal with a speed of 30.0m/s, Calculate the time of flight
A cylindrical flask is fitted with an airtight piston that is free to slide up and down, A mass rests on top of the piston. determine the final temperature of the gas
If E decreases (becomes more negative), the radius r of the orbit will decrease. If air drag is relatively small, the satellite can be considered to be in a circular orbit of continually decreasing radius.
For a particle of mass m and charge q moving in a circular path in a magnetic field B, Find angular momentum of a particle about the center of the circle
In a football game a kicker attempts a field goal. The ball remains in contact with the kicker's foot for 0.0437 s, determine the vertical components of the launch velocity
What is the instantaneous power, at a time of 0.00700 seconds, dissipated by a 200 ohm resistor in a resonant AC circuit powered by a generator with a 21.0 V highest potential difference operating at 5000 rad/s .
Mercury is about 13.6 times the density of the human body. Assume that a person (Weight = 150lb {one could only wish}) were totally immersed in the mercury; what would be the buoyant force experienced by that person?
A 25 g of copper pellets are removed from a 300 C oven and immediately dropped into 120 mL of water at 18 C in an insulated cup. What will the new water temperature be.
A coil is placed in a changing magnetic field and an emf is induced. What happens to induced emf if the rate of change of magnetic field quadruples.
Illustrate what are some pros and cons of the kitchen-sink reporting model? Illustrate what are some pros and cons of the minimalist reporting model? Explain and give examples for both.
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