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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?
Two cars drive on a straight highway. At time , car 1 passes mile marker 0 traveling due east with a speed of 17.0 . At the same time, At what time do the cars pass next to one another
A rocket of mass 7 kg moves with a constant velocity of 547 m/s eastward. It suddenly explodes and scatters into two pieces. find the direction of the second part
A person is riding a bicycle, the wheels of a bicycle have an angular velocity of +25.0 rad/s. Then, the brakes are applied. In coming to rest, What is the angular acceleration of each wheel
A hamster runs in its wheel for 2.7 hours every night. how far does the hamster run in one night
A heat engine working between 340.0oC and 630.0oC, takes in 8.277×106 J of heat and delivers 2.100×106 J of work per cycle. What is the maximum possible efficiency of an engine
Two soccer players start from rest, 43 m apart. They run directly toward each other,both players accelerating. How much time passes before they collide
two identical conducting spheres fixed in place attract each other with an electrostatic force of 0.108 n when
Air that occupies 0.15 cubic meters at 1.03e+05 Pa gauge pressure is expanded isothermally to atmospheric pressure and then cooled at constant pressure until it reaches its initial volume
The battery charger for an MP3 player contains a step-down transformer with a turn ratio of 1:40, What voltage does the secondary coil of the transformer provide
Presume that the range of output frequencies is from 68.5 Hz to 15.7 kHz for a pipe organ. Take 343 m/s for the speed of sound. What is the length (in units of m) of the longest pipe open at both ends and producing sound at its fundamental frequency?
A particle of mass m slides down an inclined plane under the influence of gravity. A) If the motion is resisted by a force f = kmv, find the distance d down the incline to come to rest with the initial speed was Vo and Theta is the inclination of the..
Hoursehoe bats use the Doppler effect to determine their location. A horsehoe bat flies towards a wall at a speed of 16.0 m/s while emitting sound of frequency 39.0kHz. What is beat frequency between the emission frequency and the echo? ____________ ..
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