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A converging lens by a focal length of 20 cm is set 25 cm in front of a diverging lens with a focal length of 15 cm. An object with a height of 2 cm is set 10 cm in front of the first lens. What is the location of the final image gauged from the second lens? What is the height of the final image? What is the magnification? Characterize the final image (real/virtual, inverted/upright, larger/smaller/same size, etc.)
A river has a steady speed of 0.250m/s. A student swims upstream a distance of 1.00 km and swims back to the starting point. by how much would the trip be longer or shorter
what is the rate of heat transfer from the plate to the air? If the free stream velocity if the air is doubled and the pressure are increased to 10 atm, what is the rate of heat transfer.
An astronaunt has landed on a strange new planet and conducts an experiment to determine the acceleration of gravity. She uses a pendulum that has a period of oscillation of 2.84 s on the strange planet and 11.85 s on Earth. What is acceleration of g..
a wire carrying a 2-a current is placed at an angle of 60deg with the respect to a magnetic field of strength 0.2 t.
A particle of mass m is subjected to a force acting in the x-direction, Fx = (2.77 + 0.351x) N. Find the work done by the force as the particle moves from x = 0 to x = 4.41 m
Some species use echolocation to determine the position and velocity of objects and prey. What is the sound frequency of the echo the bat hears
A firehouse shoots water at a speed of 50 m/s from a ground level at an angle of 60 above the horizontal. how far above the ground does it hit the building
You wish to observe the progress of your vacuum pump in evacuating a tall bell jar for the purpose of demonstrating that sound waves do not travel in a vacuum
A transformer has input voltage and current of 12 V and 6 A, and an output current of 0.8 A. how many turns are on the primary side
A modern house is wired for 120.0 V, and the current is limited by circuit breakers to a maximum of 290.0 A. (For the purpose of this problem, treat these as DC quantities.) Calculate the minimum total resistance the circuitry in the house can hav..
A person rides a bike 6.5 miles in 26 min up a mountain, climbing 1900 vertical feet. how much work did his muscles do
A point source of light is submerged 3.58 m below the surface of a lake and emits rays in all directions. On the surface of the lake, directly above the source, the area illuminated is a circle. What is the maximum radius that this circle could have?
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