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A car traveling at 40 m/s and a truck traveling at 10 m/s are on the same road. The car blows its horn with frequency 500 Hz.
(a) Find the change in the frequency of the horn as heard by the truck if the car passes the truck traveling in the same direction.
(b) Find the change in the frequency of the horn as heard by the truck if the car passes the truck traveling in the opposite direction.
A 0.85 kg mass attached to a vertical spring of force constant150 N/m oscillates with a maximum speed of v = 0.35 m/s. Find the amplitude of the motion
Three moles of an ideal monatomic gas expand at a constant pressure of 2.70 ; the volume of the gas changes from 3.40×10?2 to 4.60×10?2 . First calculate the initial temperature of the gas. Second calculate the final temperature of the gas. Thrid ..
In the absence of air resistance, a projectile is launched from andreturns to ground level. It follows a trajectory similar to that inthe figure below and has a range of 19 m.Suppose the launch speed is doubled, and the projectile is fired atthe same..
An 80.0-kg man jumps from a height of 2.50 m onto a platform mounted on springs, What is the man's speed at the instant he depresses the platform 0.120 m
Infrared light of wavelength 1.17 um illuminates a 0.34-mm-diameter hole. What is the angle of the first dark fringe in degrees
The output voltage of an ideal transformer connected to 240 V a.c mains is 24 volt. Now We have to calculate current in primary coil
By holding a magnifying glass 24 cm from your desk lamp, you can focus an image of the lamp's bulb on a wall 1.6m from the lamp. What is the focal lenghth of your magnifying glass
The earth revolves around the sun in 365 days in nearly circular orbit with a radius of 2.4 x 10^8 km. what is the linear speed of the earth in its orbit?
As an example, consider a coil of diameter 2.00 cm with 72.0 turns that is rotated about an axis perpendicular to the field at a rate of 20.0 Hz. If the maximum induced emf in the coil is 6.00 V, find out the strength of the magnetic field.
A student is reading a lecture written on a blackboard. The lenses in her eyes have a refractive power of 54.35 diopters, and the lens-to-retina distance is 1.859 cm. How far is the blackboard from her eyes
Dez pours a liquid (n = 1.34) into a container made of glass (n = 1.52). Find the angle of the corresponding refracted ray
A block of wood is compressed 2.4nm when inward forces of magnitude 128N are applied to it on two opposite sides. what is the effective spring constant of the block
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