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The distance among the objective and eyepiece lenses in a microscope is 22cm. The objective lens has a focal length of 6.0mm. What eyepiece focal length will give the microscope an overall angular magnification of 250? Show work please.
An ice skater has a moment of inertia of 5.0 kgm^2 when her arms are outstretched. how fast will she be spinning
A particle with mass of 5.00 x 10^-8 kg and 4?C of charge with an initial horizontal velocity of Vox=400m/s enters to a region of a uniform electric field with magnitude of E=2,000N/C formed between two parallel plaques of .75 m of length
A large incandescent light bulb used in a spotlight in the 1939 movie "The Wizard of Oz" had an operating temperature of 2500 degrees Kelvin. determine the thermal power from the filament in Joules/second
A rock climber throws a small first aid kit to another climberwho is higher up the mountain. what is thevertical height between the two climbers
A string under tension of 50.0 N is used to whirl a rock in a horizontal circle of radius 2.5 m at a speed of 20.4 m/s on a frictionless table. What is the breaking strength, in Newtons, of the string
Compute the speed of light observed coming from a star if the star is moving toward us at half the speed of light
A bowling ball is released at the upper edge of a ramp that is inclined at an angle of 37o with the floor. Obtain the total kinetic energy of the bowling ball at the bottom of the ramp
A square wire loop with 1.87 m sides is perpendicular to a uniformmagnetic field, with half the area of the loop in the field asshown in the figure 30-44.
a piano tuner hears a beat frequency of 6.2 hz when comparing the pianos a-string against a reference tuning fork
Calculate the inductance (SI units: Henries) of a coil of wire having a loop diameter of 0.5 cm and length of 1 cm. The wire has 1000 loops per meter
A 1.08 µF capacitor is connected in series with a 2.18 µF capacitor. The 1.08 µF capacitor carries a charge of +11.1 µC on one plate, Find the equivalent capacitance of the two capacitors
An object with a charge of -3.0C and a mass of 1.7×102kg experiences an upward electric force, due to a uniform electric field, equal in magnitude to its weight. Discovers the magnitude of the electric field. discover the direction of the electric fi..
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