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You are driving east on 8th Street (Tamiami Trail) at a speed of 27. In the rearview mirror, you see an ambulance approaching at what you estimate to be roughly twice your speed. You hear the siren of the ambulance at 473 Hz. What is the frequency of the siren?
A pendulum has a period of 0.80s on Earth. What is its period on Mars, where an acceleration of gravity is about 0.37 that on Earth.
A young boy swings a yo-yo horizontally above his head at an angular acceleration of 0.32 rad/s^2. If the tangential acceleration of the yo-yo at the end of the string is 0.15 m/s^2, how long is string.
question a novice golfer on the green takes three strokes to sink the ball. the successive displacements are 4.00 m to
A diver makes 2.5 revolutions on the way from a 11-m-high platform to the water. find the diver's average angular velocity during a dive
Hexane (C6H14) burns with air (21 % O2, 79 % N2) in stoichiometric proportions. Also determine the mole fraction of each species in the product mixture
As a 13,800 kg jet plane lands on an aircraft carrier, its tail hook snags a cable to slow it down. what was the plane's landing speed
A 4.4 cm radius ball rolls down an inclined plane from rest at the top. The angular acceleration of the rolling ball about its center is 185 rad/s^2, How long is the plane
an electric field of 9.15 x 105 vm is desired between two parallel plates each of area 26.0 cm2 and separated by 2.45
Hearing damage may occur when a person is exposed to a sound intensity level of 90.0 dB for a period of 9.00 hours, How much sound energy is incident on the eardrum during this time
A cylinder containing an ideal gas has a volume of 2.0 m3 and apressure of 1.0 × 105 Pa at a temperature of 300 K. Thecylinder is placed against a metal block that is maintained at 900K and the gas expands as the pressure remains constant until th..
An AC generator supplies an rms voltage of 115 V at 50.0 Hz. It is connected in series with a 0.500 H inductor, What is the rms current through the resistor
A 1420-kg car is being driven up a 7.52 ° hill. The frictional force is directed opposite to the motion of the car and has amagnitude of 514 N. A force F is appliedto the car by the road and propels the car forward. In addition to these two forces..
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