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Question: An ambulance has a siren of frequency 700 Hz. If the ambulance is moving at a speed of 60 miles per hour, what will be the frequency heard by a man standing on the sidewalk as the ambulance approaches him?
A particle starts at rest at point p and moves to point q with uniform acceleration, Find the distance between p and q. Also find the acceleration of the particle
A block of mass m1 = 0.55kg is placed on top of another block of mass m2 =0.91kg, What minimum coefficient of static friction between the two blocks will prevent the upper one from slipping
Proponents of astrology claim that the positions of the planets at the time of a baby's birth will affect the life of that person in important ways. Calculate the maximum force exerted on the baby by the planet Mars
question1a 240 33.0-cm-diameter turntable rotates on frictionless bearings at 55.0. a 25.0 block sits at center of the
A person wears a hearing aid that uniformly increases the intensity level of all audible frequencies of sound by 29.7 dB. The hearing aid picks up sound having a frequency of 250 Hz at an intensity of 3.10 10-11 W/m2. What is intensity delivered to t..
You have a total charge Q=16fC. An amount q is to be put in one sphere, What value of q maximizes the electrostatic force between the two spheres
Tony pulls his cousin Ann in a sled on an icy surface (no friction) with a force of 60N at an angle of 60 degrees upward from the horizontal
Two closely spaced circular disks form a parallel-plate capacitor. What are the diameters of the disks
A bus with a vertical windshield moves along in a rainstorm at speed V relative to the ground. At what angle do the raindrops strike the windshield
A 17.0 kg loudspeakeris suspended 1.00 m below theceiling by two 3.10 m longcables that angle outward at equal angles. What is the tension in each of the cables
A cube of ice, 27 cm on each side, is melted into a measuring cup. What is the volume of the liquid water
Suppose you measure a cylinder and determine that the radius is 0.52 + 0.01 cm and its height is 3.20 + 0.15 cm. What is the standard error of the volume
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