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A bus traveling on a highway at the speed of 35 m/s, blows a horn with a frequency of 1200 Hz. What frequency is heard by a passenger in a car which is approaching the bus from the opposite direction at 45 m/s. (Assume the speed of sound in air is 345 m/s)
23g of copper pellets are removed from a 300?C oven and immediately dropped into 70mL of water at 23?C in an insulated cup
Illustrate what effect does this transaction have on revenue or expense for the period?(b) Illustrate what effect does it have on stockholder's equity?
One end of a nylon rope is tied to a stationary support at the top of a vertical mine shaft of depth 83.0 m. What is the wave speed at the top of the rope
What is the difference between the acceleration of his head and feet if the astronaut is 2.00 m tall.
Red light of wavelength 665.9 nanometer produces photoelectrons from a certain material. Evaluate what is the material work function
Find what is the greatest distance at which these headlights can be resolved as separate points of light on a photograph taken with a camera whose aperture has a diameter of 10.5 millimeter
A uniform rod of length 49m and mass of 82 kg is free to rotate about a frictionless pivot at one end in a vertical plane. find the magnitude of the initial angular acceleration of the rod
A microscope has an objective lens with a focal length of 16.22 mm and an eyepiece with a focal length of 9.72 mm. what is the actual diameter of the red blood cell
A simple pendulum has a length L and a mass m. At its highest point, the pendulum mass is 0.25L above its lowest point. What is the speed of mass when it is at its lowest point
A 110-g bullet is fired from a rifle having a barrel 0.594 m long. Choose the origin to be at the location where the bullet begins to move. Determine the work done by the gas on the bullet
a coil of inductance 0.50 h and resistance 100nbspomega is connected to a 240 v 50 hz ac supply.a what is the maximum
An object of mass 1.2 kg hangs from the end of a spring. Imagine that the object is lifted upward and held at rest at the position where the spring is not stretched. What is the amplitude of the oscillation
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