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A 100-g ice cube at 0 degrees C is placed in 650 g of water at25 degrees C. What is the final temperature of the mixture?
If the coefficient of kinetic friction between the box and the roof is 0.55, with what speed must you push the box to have it gently come to rest right at the edge of the roof.
an x-ray photon with wavelength 15.0 pm is scattered at 84.0 degrees by an electron. What is the resulting kinetic energy of the electron
A piston-cylinder device initially contains 1 m of nitrogen gas at 400kpa and 27 c. Determine the final temperature of nitrogen
Two forces are applied to a car in an effort to move it, as shown in the following figure, where F1 = 423 N and F2 = 355 N. What is the resultant of these two forces
Both surfaces of a double convex lens have radii of 30.8 cm. what is the index of refraction of the lens material
A 0.14-kg balloon is filled with helium (density = 0.179 kg/m3). If the balloon is a sphere with a radius of 5.3 m, what is the maximum weight it can lift
A hanging mass and the cylindrical, uniform, frictionless pullery have mass M. What is the acceleration of the hanging mass
A man standing1.54m in front of a shaving mirror produces an inverted image20.0cm in front of it. How close to the mirror should he stand
Balmer discovered the famous formula that bears his name by inspection and trial and error. See if you can discover the formula for each of the following series of wavelengths. Each formula involved an integer n, but, as in the Balmer formula, n m..
Suppose you decide to travel to a star 85 light-years away at a speed that tells you the distance is only 10 light-years
A ball of mass 1.91 kg is dropped from a height y1 = 1.35 m and then bounces back up to a height of y2 = 0.59 m. How much mechanical energy is lost in the bounce
A mass-spring system with 0.250kg undergoes simple harmonic motion with period 0.52 seconds. When an additional mass (delta M) is added, the period increases by 21%. A) Find delta M. Express your answer to two significant figures and include the appr..
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