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A spherical mirror forms an image that is virtual, one-quarter of the size of the object, and 3cm from the mirror. Find the focal length of the mirror, and draw the corresponding ray diagram.
A sound wave of frequency 1840 Hz., propagating through air at 0 degrees Celsius, has a pressure amplitude of 15.0 Pa. What is the maximum particle speed
A heat engine operates in a Carnot cycle between72.0°C and345°C. It absorbs21,600J of energy per cycle from the hot reservoir. How much energy does it expel in each cycle by heat
A string 2.0m in length is fixed a both ends and tigthened until the wave speed is 78m/s. what is the frequency of the standing wave
a car heading north collides at an intersection with a truck heading east. if they lock together and travel 28 m.s at 46 degrees north of east just after the collision, how fast was the car initially traveling
Answers for an elevator are moving down with an acceleration of 3.360 m/s. what would be the apparent weight of a 64.20 kg man in the elevator.
A block of mass m is attached to a string that is wrapped around the circumference of a wheel of radius R and moment of inertia I. Find the moment of inertia of the wheel
How many electrons should be removed from an initially uncharged spherical conductor of radius 0.29 m to produce a potential of 6.8 kV at the surface
A cosmic ray electron moves at 7.85 multiplied by 106 m/s perpendicular to the earth's magnetic field at an altitude where field strength is 1.10 multiplied by 10-5 T
A jogger travels a route that has two parts. The first is a displacement of 2.70 km due south, and the second involves a displacement that points due east.
A carpenter tosses a shingle horizontally off an 8.8m--high roof at 8.0m/s , How far does it move horizontally
A small steel wire of diameter 1.0mm is connected to an oscillator and is under a tension of 5.7N. What is the power output of the oscillator, assuming that the wave is not reflected back
A rock is dropped from a sea cliff, and the sound of it striking the ocean is heard 2.8 later. If the speed of sound is 340 , how high is the cliff
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