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An archaeologist uses a converging lens to examine the details of a small article. If the focal length is 5.32 centimeter, find what is the maximum magnification? Obtain the magnification if he positions the lens so that there is minimum eyestrain?
An airplane is flying in a horizontal circle at a speed of 100 m/s. The 80.0-kg pilot does not want her radial acceleration to exceed 7g. (a) What is the least radius of the circular path? (b) At this radius, what is the force causing the centripe..
A horizontal force of 2.8 N is applied to a 1.2- kg radio, initially at rest on a table with a level surface. What is the coefficient of friction if it just begins to move
A loop of diameter 15 cm is placed in a uniform electric field of magnitude 6.0 102 N/C. (a) What is the electric flux through the loop when the electric field is perpendicular to the plane of the loop? N·m2/C.
question a parallel-plate capacitor has circular plates of radius 20 cm and a uniform electric field between the
a vertical concrete dam is built in the ravine between two hills. The face of the dam slopes equally on both sides at an angle of 45.0o to the horizontal. Find the horizontal force on the dam just due to the water
A large fish hangs from a spring balance supported from the roof of an elevator. What will the balance read if the elevator cable breaks
What is the rms speed in meters/second of nitrogen molecules contained in a volume of 4.0 m^3 at 2.4 atm, if the total amount of nitrogen is 1700 moles
A motorist driving along a straight road at a constant speed of 60 -m/s. At time t=0 she passes a parked motorcycle police officer and begins to accelerate at the constant acceleration.
Discuss the humidity in an air conditioned room and in a heated room in the winter. Why must we use a humidifier and dehumidifier? If the outside temperature is 41o F and room temperature is 68o F should we utilize dehumidifier why or why not?
As the earth rotates, what is the speed of a physics student in Miami, Florida, at latitude 26°? What is the speed of a physics student in Fairbanks
Two balls of radius 2.00 mm have a separation between theircenters of 5.33 cm. The same electric charge is placed on bothballs so that there is a repulsive force between them of2.65 N. Assume that the charge is uniformlydistributed over each ball.
An outboard motor for a boat is rated at 36 hp h. If it can move a particular boat at a steady speed of 30 km/h , what is the total force resisting the motion of the boat
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