Can any one solve these for me ?

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SUMMARY

This discussion focuses on solving three physics problems involving sound frequency calculations using the Doppler effect, optics with a diverging lens, and energy calculations related to a waterfall. The first problem requires applying the Doppler effect to determine the perceived frequency of sound under various conditions of motion. The second problem involves using the magnification formula to locate the object and image positions for a diverging lens with a focal length of 15 cm. The third problem calculates the power generated by water falling from a height of 50 m and the work done by the water, using energy equations.

PREREQUISITES
  • Doppler effect principles
  • Magnification formula for lenses
  • Energy equations in physics
  • Basic understanding of kinematics
NEXT STEPS
  • Study the Doppler effect calculations for moving sources and observers
  • Learn about the properties and applications of diverging lenses
  • Explore energy conservation principles in fluid dynamics
  • Investigate the relationship between power, work, and energy in mechanical systems
USEFUL FOR

Students in physics, educators teaching optics and wave phenomena, and anyone interested in practical applications of energy calculations in real-world scenarios.

vaastav
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1) calculate frequencies by a listener under the following circumstances.a)a listner moves with a velocity of 60km/hr directly towards a stationary source emitting sound waves of frequency 2000hz.
b)source is moving directly towards listener with a velocity of 60 km/h,observer is at rest. c)source and listener both are moving toward each other with velocity 50km/h.
2) a diverging lens of focal length 15cm porduces of image of magnification one third.
i)where is the object located.
ii)where is the image located.
iii)draw graphical representation.
3) water falls over waterfall of height 50m at a rate of 5000 cubic per minute. determine the power generated.if water takes 10 minutes to reach the ground and also calculate work done by water.


THANX
 
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Apply the doppler effect
Apply the magnification formula
Apply Energy Equations
 
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