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The Internal energy E(T) of a system at a fixed volume is found to depend on the temperature T as E(T) = aT2 + bT4. Then the entropy S (T), as a function of temperature would be?
A proton orbits a long charged wire, making 1.2E6 revolutions per second. The radius of the orbit is 1.0 cm. What is the wire's linear charge density
At one instant a bicyclist is 28 m due east of a park's flagpole, going due south with a speed of 8 m/s. after that, 11 s later, the cyclist is 65 m due north of flagpole, going due east with a speed of 10 m/s.
What is the drag force on a 1.6 m wide, 1.4 m high car traveling at 11 m/s (25 mph)? Suppose that the density of air is 1.2 kg/m3
Discuss the pro's and con's of using lower power storage density with significant on-orbit heritage vs. batteries with higher power storage density but with less flight heritage.
An object is placed near a converging lens as shown below. Each focal point is marked by an F. Two rays have been drawn to determine the location of the image of the object. Continue the third ray shown through the lens and out the other side. Exp..
Part A. At what rate does the Sun radiate energy, given that it's essentially a spherical blackbody with radius 6.96x108m and surface temperature 5800 K? Express your answer with the appropriate units.
in fresh water, sound travel at a speed of 1460m/s in the cold air sound travel in speed of 331m/s. how far is he from the site of the explosion
Consider a star of mass M=10Msun, composed entirely of fully ionized C-12. Its core temperature is 6*10^8K. a. What is the mean particle mass mbar in units of m(hydrogen)?
Rare 1918 "Jenny" stamp, depicting a misprinted, upside-down Curtiss JN-4 "Jenny" airplane, was sold at auction for $525,000. A collector uses a simple magnifiying glass to examine the "Jenny," obtaining a linear magnification of 2.4 when the stam..
On a frozen pond, a 10 kilogram sled is given a kick that imparts to it an initial speed of v= 2.0 m/s. determine the distance the sled moves before coming to rest
An airplane flies 200km due west from city Band then 285 km in direction of 28 degrees north of west from city B to city C. in a straight-line distance how far is city C from city A.
block 1 has mass m1 = 470 g, block 2 has mass m2 = 510 g, and the pulley is on a frictionless horizontal axle and has radius R = 5.2 cm. What is the pulley's rotational inertia
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