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You are flying in an ultra-light aircraft at a speed of 41 m/s. An eagle, whose speed is 10 m/s, is flying directly toward you. Each of the given speeds is relative to the ground. The eagle emits a shrill cry whose frequency is 3400 Hz. The speed of sound is 330 m/s. What frequency do you hear?
A scalloped hammerhead shark swims at a steady speed of 1.8 meter per second with its 80 centimeter wide head perpendicular to the earth's 56 µT magnetic field. Find the magnitude of emf induced between two sides
a cubic block of quartz glass measures 0.1m on a side. what will be the increase in volume of the block if it is heated
A23.0-mW laser beam of diameter1.85mm is reflected at normal incidence by a perfectly reflecting mirror. Calculate the radiation pressure on the mirror
question 1 why does the amplitude of the vibration of the lrc circuit change with frequency?question 2 when does the
What force must be applied to 5kg object to move it downward with acceleration 1 m/s^2. What is the direction of the applied force.
From the roof of a building at h = 16 m water drops fall with the same interval between them. Find the distances between the first five drops
A balloon is filled with 5.45 liters of helium at a pressure of 1.25 atm and a temperature of 29.5° C. Find the mass of the helium
A 2.00-kg block slides down a board 1.50 mlong which is inclined at an angle of 40.0°. The coefficient of friction between the block and the board is 0.200. Find the work done by each force that acts on the blockas it slides from the top to the botto..
The longest "string" (a thick metal wire) on a particular piano is 3.0 m long and has a tension of 300.0 N. What is the total mass of the wire
The drawing shows an equilateral triangle, each side of which has a length of 1.59 cm. Point charges are fixed to each corner, Determine the charge qA and q
A laser used in cutting or drilling metals produces 10 ns pulses at 1.00 J per pulse. What is the peak power of each pulse
a. kc 8.98755 x 102 nm2c2 and the charge on a proton is 1.60218 x 10-19 c. find the potential 1.08 cm from a proton.b.
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