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Lens L1 has a focal length of 15.o cm and is located afixed distance in front of the film plane of a camera. Lens L2 has a focal length of 13.0 cm, and its distance dfrom the film plane can be varied from 5.00 cm to 10.0 cm. Determine the range of distances for which objects can be focused on the film.
A spring of spring constant k=12.50 N/m is hung vertically. A 0.5000 kg mass is then suspended from the spring. What is the displacement of the end of the spring
A thin wire is bent into a semicircle, having a radius of curvature equal to 6.40 cm. What is the potential at the center of curvature?
Many stores have "security mirrors" mounted on ceilings or in corners so that employees can keep watch over large parts of the store, what is the magnification of the image
A glass lens has a scratch-resistant plastic coating on it. The speed of light in the glass is 0.659c, At what angle with respect to the normal is the ray transmitted
Matthew pulls his little sister Sarah in a sled on an icy surface (no friction) with a force of 60 N at an angle of 600 upward from the horizontal
A student sits at rest on a piano stool that can rotate without friction. The moment of inertia of the student-stool system is 3.7 kg · m2. A secondstudent tosses a 1.4-kg mass with a speedof 2.2 m/s to the student on the stool,
At Sea World, a 32.0-kg seal slides down aramp into the pool below. What is the work is done by kinetic friction
A rubber ball with a radius of 3.2cm rolls along thehorizontal surface of a table with a constant linear speed v. When the ball rolls off the edge of the table, it falls 0.66 m to thefloor below. if the ball completes 0.37 revolution during itsfalls,..
An L-R-C series circuit, R= 160 Ω, L= 0.700 H, and C= 1.90×10-2 μF. The source has a voltage amplitude of 160 V and a frequency equal to the resonance frequency of the circuit. what is the average power delivered by the source
An electron moves with velocity v = (3.79E+4i - 5.79E+4j) m/s in a magnetic field B = (-0.905i + 0.559j) T. What is the magnitude of the force on the electron
just after midnight the body of an apparent homicide victim was found inside a room kept at a constant temperature of
In a different car, the distance the dummy moves while being stopped is reduced from 0.750 m to 0.270 m, calculate the average force on the dummy as that car stops
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