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At a party,3.00kg of ice at-4.20°C is added to a cooler holding 30 liters of water at 20.0°C. What is the temperature of the water when it comes to equilibrium?
°C
A skateboarder, with an initial speed of 2.0 m/s, rolls virtually friction free down a straight incline of length 18m in 3.3s. At what angle is the incline oriented above the horizontal
A microscope with an 6.5-mm-focal-length objective has a tube length of 14.0cm. how far should the objective lens be from the specimen
George, Romeo's not often heard about older brother, was also quite in love with Juliet. One night he tried to climb a 10 m long, find the coefficent of friction between the ladder and the grass
A member of an aircraft maintenance crew wears protective earplugs that reduce the sound intensity by a factor of 405. When a jet aircraft is taking off, the sound intensity level experienced by the crew member is 90 dB. What sound intensity level..
A charged particle of mass 8.39×10?4 kg starts from rest and accelerates through a potential difference of +25,000 V to reach a speed of 1240 m/s
When violet light of wavelength 415 nm falls on a single slit, it creates a central diffraction peak that is 8.80 cm wide on a screen that is 2.50m away
A photon undergoing Compton scattering has an energy afterscattering of 800 keV, and the electron recoils with an energy of 200keV
Light of wavelength 655 nm is used to illuminate normally two glass plates 20 cm in length that touch at one end, How many bright fringes appear along the total length of the plates
A useful model of a water molecule is sketched in the figure below, with point charges of 5.2 10-20 C at the H sites, What is the total electric potential energy of this model of a water molecule
An LC circuit has a 25mH inductor and a 12uF capacitor. The current is at its maximum value of 0.7A at t=0. How long does it take for the capacitor to be fully charged
Your roommate is working on his bicycle and has the bike upside down. He spins the 54.0cm -diameter wheel, What is the pebbles speed and acceleration
A wire etched onto a computer chip carries a current of 0.000000030 A. In 1.8 milliseconds, how many electrons flow past a point on the wire
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