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Suppose that a molecular ion with charge -10e is embedded within the 5.0-nm-thick cell membrane of a cell with membrane potential -70 mV. What is the electric force on the molecule?
A 625 kg woman climbs a staircase that rises at 48 degrees above the horizontal and is 4.25 m long. How much work has gravity done on her as she climbed the stairs
A 1.0-kg standard cart A collides with a 0.10-kgcart B. The x component of the velocity of cart A is +0.70m/s before the collision and +0.50m/s after the collision. What is the x component of the change in the momentum of A
When monochromatic light shines vertically on a soap film(n = 1.33) with air on each side, the second smallest nonzero film thickness for which destructive interference of reflected light is observed is 326 nm. What is the vacuum wavelength of the li..
One mole of neon, a monatomic gas, starts out at conditions of standard temperature and pressure. find the heat added to the gas
The electric potential at the center of a square is 1 V when a charge of +Q is located at one of the square's corners. What is the electric potential at the square's center when identical charges of -Q are placed at the other three corners of the squ..
An airplane flies in a loop (a circlar path in a verticalplane) of radius 150m. The pilot's head always points toward thecenter of the loop. What is the speed of the airplane at this point
A particular heat engine has a mechanical power output of 6.00 kW and an efficiency of 28.0%, Find the energy taken in during each cycle
A student is reading a lecture written on a blackboard. The lenses in her eyes have a refractive power of 56.11 diopters, and the lens-to-retina distance is 1.791 cm. (a) How far is the blackboard from her eyes? (b) If the writing on the blackboard i..
A coil of 39 turns is in the shape of an ellipse having a major axis of 12.0 cm and a minor axis of 8.84 cm. The coil rotates at 139 rpm in a region in which the Earth's magnetic field is 64.5 ?T. What is the maximum voltage induced in the coil if th..
An extreme skier, starting from rest, coasts down a mountain slope that makes an angle of 25o with the horizontal. Find how fast is she going just before she lands
what object distance would give a focused image with a spatial frequency of 20 line pairs mm when the object consists
The earth spins in the same sense as it orbits around the sun. find the earth's spin angular velocity about its internal axis
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