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A physicist\'s left eye is myopic (i.e., nearsighted). This eye can see clearly only out to a distance of 21 cm. Find the focal length and the power of a lens that will correct this myopia when worn 2 cm in front of the eye? what is the power in Diopters?
Two spherical objects have a combined mass of 200. The gravitational attraction between them is 8.01×10-6 while their centers are 21.0 apart.
Three forces act on a moving object. One force has a magnitude of 82.8 N and is directed due north. What must be the direction of the third force
An equipotential line surrounds a charge distribution of known value (35 mC). Two points A and B are selected on this equipotential line separated by 3.0 cm. What is the potential difference DV between these points
Let the angle of incidence be 70° and the transmitted region be diamond with n2 = 2.42
Compute magnitude and direction of magnetic field produced by the moving belt at a point just above its surface .
You have two containers of a monatomic ideal gas that are intially at the same Pressure, Volume, and Temperature. What is the difference in work done in these processes, 1 - 2
A -10.0 nC point charge and a +20.0 nC point charge are 15.0 cm apart on the x-axis. What is the direction of the electric field at the point on the x-axis, between the charges, where the electric potential is zero
You decrease the angular speed of the cylinder from 4:0 rad/s to 2:0 rad/s in 20:0 revoluations at constant angular acceleration. What is the angular acceleration during this decrease
A 14.2-g piece of Styrofoam carries a net charge of -0.69 µC and is suspended in equilibrium above the center of a large, find the charge per unit area on the plastic sheet
A parallel-plate air capacitor with a capacitance of 236 has a charge of magnitude 0.13 on each plate. The plates have a separation of 0.33.What is the potential difference between the plates.
One day when you come into physics lab you find several plastic hemispheres floating like boats in a tank of fresh water. What is the mass of the heaviest rock that, in perfectly still water, won't sink the plastic boat
A small piece of rock is weighed in air and then weighed while immersed in oil of density 800 kg/m3. If the weight in air is 21.5 N and the weight in the oil is 11.8 N, calculate the density of the rock
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