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A "seconds pendulum" is one that moves through itequilibrium position once each second. (The period of the pendulumis 2.000 s.) The length of a seconds pendulum is 0.9921 m at Tokyo and 0.9949m at Cambridge, England. What is the ratio of the free-fall accelerations at these two locations?
A roller coaster car rolls down a frictionless track, reaching speed v_0 at the bottom. by what factor must you increase the height of the track
white light illuminates an oil film on water. viewing it directly from above it looks red. assume that the reflected
The right ascension of the star Vega, brightest star in theconstellation Cygnus, is 18h 37m 12s. If Vega’s Hour Angle is +3h 10m, what is the LocalSidereal Time?
Cell Membranes and Dielectrics Many cells inthe body have a cell membrane whose inner and outer surfaces carryopposite charges, just like the plates of a parallel-platecapacitor. Suppose a typical cell membrane has a thickness of8.2×10−9 m, and it..
Dan is gliding on his skateboard at 4.00m/s . He suddenly jumps backward off the skateboard, kicking the skateboard forward at 6.00m/s, How fast is Dan going as his feet hit the ground
The coldest and hottest temperatures ever recorded in Switzerland are -43.2 F (231 K) and 106.7 F(315K) respectively. What is the speed of sound in air at each temperature
A steel ball of mass M is released from rest at point P. It follows a smooth curved rail to point Q and finally reaches point R with K.E. of 7J. The speed of the ball at point Q is 2MS-1 and the height between point P and the ground is 3m. Then find ..
What are the possible value for of n and m if a) l = 1, b) l = 4, and c) l = 0 ? compute the normalization constant for the wave function
A car with 66 -diameter tires accelerates uniformly from rest to 20 in 20 . How many times does each tire rotate
Cube of ice is taken from the freezer at -8.5°C and placed in a 75-gram aluminum calorimeter filled with 300.0 grams of water at room temperature of 20.0°C. The final situation is observed to be all water at 17°C. What was the mass of the ice cub..
A potential difference of 87mV exists between the inner and outer surfaces of the cell membrane. The inner surface is negative relative to outer surface. How much work is required to eject a positive sodium ion (Na+) from the interior of the cell.
An undiscovered planet, many lightyears from Earth, has one moon in a periodic orbit. estimate the moon\'s radial acceleration
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