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A biology student utilizes a simple magnifier to examine the structural features of the wing of an insect. The wing is held 3.75 cm in front of the lens, and the image is formed 26.0 cm from the eye.
a) What is the focal length of the lens?
b) What angular magnification is achieved?
Particles P and Q areinitially at rest 1.0 m apart. P has a mass of0.10 kg and Q a mass of 0.30kg. P and Q attract eachother with a constant force of 10–2 N. No external forces act on the system.
A bob of mass m = 0.250 kilogram is suspended from a fixed point with a mass less string of length L = 22.0 centimeter. What tangential speed v must the bob have therefore that it moves in a horizontal circle with the string making an angle 21.0 deg..
Consider an infinitely large non-conducting sheet in the xy-plane with uniform charge density σ. Write down theexpression that defines the electric field everywhere inspace.
A square wooden raft sinks halfway into the water unloaded and sinks all the way into the water without sinking when carrying a load of 200 kg. Discover the mass of the raft?
A farsighted person has a near point of 61 cm rather than the normal 25 cm. What strengthlens, in diopters, should be prescribed to correct this visionproblem?
In a certain automobile engine with an efficiency of 19.2%, combustion of gasoline in one cylinder releases 490 J of heat. Find the total mechanical power produced by all four cylinders, operating at 48 cycles/s, or 2880 rpm
A lens which is 40.0 cm from an object forms an image of the object on a card 20.0 cm away. Determine what is the focal length of the lens? If the height of the image is .75 cm, what is the height of the object?
An object acted on by three forces moves with fix velocity. Find the magnitude and direction of the third force acting on the object
Conclude the electric field at the origin
One gram of water changes from liquid to solid at a constantpressure of 1.00 atm and a constant temperature of 0°C. Find the change in the internal energy of the water
At the local swimming hole, a favorite trick is to run horizontally off a cliff that is 8.3m above the water. One diver runs off the ede of the cliff, tucks into a "ball" and rotates on the way down with an average angular speed of 1.6 rev/s. Ignor..
in an rc series circuit 16.0 v r 1.60 m and c 1.80 microf. a calculate the time constant. s b find the maximum
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