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Two 27.0 cm focal length converging lenses are placed 16.5 cmapart. An object is placed 35.0 cm in front of one. Where will thefinal image formed by the second lense be located? What is the total magnification?
A child is in danger of drowning in the Merimac river. The Merimac river has a current of 3.1 km/hr to the east, How far from the dock does the boat reach the child
(a) Calculate the lowest energy of the electron in He+. Is it lower than that of H (b) If this electron absorbs a photon and makes a transition to the 2p orbital
A light spring-gun projectile launcher is mounted on an 0.593 kg air track glider. compute the speed of the air-track glider after the gun is fired
Calculate the magnitude of the linear momentum of a 35 kg object on the equator, as measured from the center of the Earth. The radius of the Earth is 6371 km.
In a double-slit experiment, the second-order bright fringe is observed at an angle of 0.62°. If the slit separation is 0.10 mm, then what is the wavelength of the light? I'm getting 5.4104e-6 nm? But I'm not sure what I'm doing wrong. I've tried it ..
A thermos contains 159 cm3 of coffee at 93.7 °C. To cool the coffee, you drop two 13.2-g ice cubes into the thermos. What is the final temperature of the coffee
Suppose that earth was formed as molten rock at some very high temperatures. Estimate the time for the earth to cool to 300 K.
Define the carrier power, total power and sideband power in the AM signal.
The driver of a car sets the cruise control and ties thesteering wheel so that the car travels at a uniform speed of 10 m/sin a circle with a diameter of 130 m. What linear distance does it travel in this time
A hot air balloon rises from the ground with a velocity of 1.8 m/s.A champagne bottle is opened to celebrate takeoff, expelling thecork horizontally with a speed of 4.0 m/s. How long does the cork remain in the air
An autoclave is a device used to sterilize laboratoryinstruments. It is essentially a high-pressure steam boiler andoperates on the same principle as a pressure cooker. What is the temperature of the steam
A steam engine has a boiler that operates at 4.90 102 K, If 3.50 103 J of energy is supplied from the boiler, find the work done by the engine on its environment
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