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A 0.240-kg piece of aluminum that has a temperature of -171 °Cis added to 1.5 kg of water that has a temperature of 1.5 °C. At equilibrium the temperature is 0 °C. Ignoring the containerand assuming that the heat exchanged with the surroundings isnegligible, determine the mass of water that has been frozen into ice.
A certain kind of glass has an index of refraction of 1.640 for blue light of wavelength 430 nm and an index of 1.595 for red light of wavelength 680 nm. what is the angle between the two beams inside the glass
A wheel 65 cm in diameter accelerates uniformly from 215 rpm to 390 rpm in 6.0 s. How far will a point on the edge of the wheel have traveled in this time.
Jack and Jill ran up the hill at 3.3 m/s . The horizontal component of Jill's velocity vector was 2.0 m/s. What was the angle of the hill? Illustrate what was the vertical component of Jill's velocity?
A small compass is held horizontally, the center of its needle adistance of 0.120 m directly north of a long wire that isperpendicular to the earth's surface.
Your taking a trip to a mysterious island where the temperature this time of year is usually about 230k. What is the temperature on the Fahrenheit scale
Two spheres of mass m1= 3kg and m2= 1.5 kg are given. The lighter sphere is at rest. what is the velocity of each sphere after collision
A relief airplane is delivering a food package to a group of people stranded on a very small island. After a package is ejected from the plane, how long will it take for it to reach sea level from the time it is ejected
a sphere of radius 20.0 cm and mass 1.80 kg starts from rest and rolls without slipping down a 30.0ordm incline that
A student stands on a platform that is rotating without friction at 1.2 rev/s. His arms are outstretched and he holds a brick in each hand. what is the new angular speed of the system
A defibrillator passes a brief burst of current through the heart to restore normal beating. In one such defibrillator, What is the initial current through the patient
the equilibrium separation of H atoms in the H2 molecule is 0.074nm. Calculate the energies and wavelenghts of photons
question as a high-power laser engineer you need to focus a1.17-mm diameter laser beam to a10.3-microm diameter
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