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A process called gaseous diffusion is often used to separate isotopes of uranium-that is, atoms of the elements that have different masses, such as 235U and 238U. The only gaseous compound of uranium at ordinary temperatures is uranium hexafluoride, UF6. Speculate on how 235UF6 and 238UF6 molecules might be separated by diffusion. (in words)
A scaffold of mass 65 kg and length6.5 m is supported in a horizontalposition by a vertical cable at each end. What is the tension in the cable closer tothe painter
A disk of radius R and mass M = 10 g is rotating freely about a fixed axis through its center with angular velocity w = 11 rad/s. A spider of mass m = 0.5 g descends onto the disk and goes along for the ride. The moment of inertia of the disk is I..
A sailboat is initially moving at a speed of 4m/s. A strong windblows up and accelerates the boat forward with a constantacceleration of 0.2m/s^2 for 10s. What is the final speed of the sailboat
You're in a uniform electric field of magnitude 300N/C, compute the potential difference if you travel 1 cm in the direction of the field
Cheetahs, fastest of the great cats, can reach 45 in 2 starting from rest. Assume that they have constant acceleration throughout that time, find their acceleration (in (a) and (b) ) and the distance (in (c) and (d) ) Q2. They travel during that t..
A cardinal (Richmondena cardinalis) of mass 3.80×10^?2 kg and a baseball of mass 0.145g have the same kinetic energy. What is the ratio of the cardinal's magnitude of momentum to the magnitude of the baseball's momentum?
On a nice winter day at the South Pole, the temperature rises to ?63°F. What is the approximate temperature in degrees Celsius
A ray in a glass is incident onto a water-glass interface, at an angle of incidence equal to half the critical angle for that interface. The indices of refraction for water and the glass are 1.33 and 1.94, respectively. The angle that the refracted r..
Problem on the velocity of boat
During a portion of the Carnot cycle, a dilute gas of diatomic nitrogen is compressed slowly at constant temperature, T = 280 K. How much energy was transferred to the environment through heating or cooling
A block with mass m2 is placed on an inclined plane with slope angle α and is connected to a second hanging block that has mass m2 by a cord passing over a small, frictionless pulley. The coefficient of static friction μg is and the coefficient of..
A standing wave is produced on a clothesline 8m long when five birds sit on the line. No birds sit on the end. What is the wave speed
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