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Suppose 0.380 kg of water initially at 45.0°C is poured into a 0.300 kg glass beaker having a temperature of 25.0°C. A 0.500 kg block of aluminum at 37.0°C is placed in the water, and the system insulated. Calculate the final equilibrium temperature of the system.
At what temperature is the speed of sound in helium (ideal gas, = 1.67, atomic mass = 4.003 u) the same as its speed in oxygen gas at 11.0 oC? The speed of sound in oxygen at 11.0°C is 322 m/s.
Two Jupiter-size planets are released from rest 5.00×1010m apart. What are their speeds as they crash together
A large boulder rests on a cliff 500 m above a small village in such a position that, What is the initial speed of the boulder
A grating has 350 rulings/mm and is illuminated at normal incidence by white light. A spectrum is formed on a screen 30cm from the grating. what range of wavelength passes throught the hole
A certain red giant star has a luminosity of 100,000 times that of the Sun and is located 600 light-years from Earth. calculate the rate of interstellar extinction in the direction of the star
The altitude of this luge track is 2237m. The altitude at the end is 2205 m. If a luger takes 48 seconds to complete a run, what is his average vertical velocity
A hill that has a 25.7% grade is one that rises 25.7 m vertically for every 100.0 m of distance in the horizontal direction. At what angle is such a hill inclined above the horizontal?
A hollow ball with mass 0.50kg and radius 10cm rolls down a 3.0m high ramp without sliding.What is the maximum hight that the ball reaches?
A uniform magnetic field passes through a horizontal circular wire loop at an angle 16.2° from the normal to plane of the loop. compute the magnetic flux through the loop
Two 5.5 5.5 metal plates are separated by a 0.21--thick piece of Teflon. compute the maximum potential difference between the disks
Two boats are initially separated by distance d and head directly toward one another. The skippers of the boats want to arrive at the same time at the point that is halfway between their starting points.
Neptune has a mass of 1.02 1026 kg and a radius of 2.48 107 m. Assume it is a uniform solid sphere. What is the rotational kinetic energy of Neptune on its axis
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