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A wheel starts from rest and rotates by constant angular acceleration about a fixed axis. It completes the first revolution 6.0 s after it started. How long after it started will the wheel complete a second revolution?
What is the total charge of the radon nucleus? (The neutral radon atom has 86electrons.) What is the magnitude of the forceon an electron at a distance of 2.36 Angstrom from the radonnucleus?
A cylindrical eraser of negligible mass is dragged across a paper at a constant velocity to the right by its pencil. The coefficient of kinetic friction between eraser and paper is 0.650. The pencil pushes down with 3.70 .
Oxygen has a molar mass of 32.0g/mol. What is the root-mean-square speed of an oxygen molecule at a temperature of 298K
in mostar bosnia the ultimate test of a young mans courage once was to jump off a 400-year-old bridge now destroyed
The diamagnetic susceptibility due to the ion cores in metallic copper is -0.20 times 10-6. Knowing that the density of Cu is 8.93 g/cm3 and atomic weight is 63.5, calculate the average ionic radius of Cu.
A nylon guitar string has a linear density of 7.0 g/m and is under a tension of 150 N. The fixed supports are distance D = 90.0 cm apart. calculate the frequency of these traveling waves
Block A is dropped from a height of 2 m. An identical block B slides frictionlessly down a ramp of height 2 m inclined at 30°. Which block is travelling fastest at the bottom of the ramp
Animals in cold climates often depend on two layers of insulation: a layer of body fat surrounded by a layer of air trapped inside fur or down, What is the thickness of the air layer
two blocks of masses m1 2.00 kg and m2 4.10 kg are released from rest at a height of h 4.90m on a frictionless track
An object is placed 19 cm to the left of a converging lens of focal length 29 cm. Find the position and magnification of the final image
a cylindrial tank being drained through a duct whose cross-sectional area is 3x10-4 m2. the velocity of the water at
Ground beef may be irradiated with high-energy electrons from a linear accelerator to kill pathogens. Estimate the temperature increase of the beef due to this procedure
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