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Which one of the following statements concerning spherical mirrors is correct?
A. only a convex mirror can produce an enlarged image
B. Both concave and convex mirrors can produce an enlarged image
C. only a concave mirror can produce an enlarged image, provided the object distance is less than the radius of curvature
D. Only a concave mirror can produce an enlarged image, provided the object distance is greater than teh radius of hte curvature
the red light emitted by a helium-neon laser has a wavelength of 632.8 nm. what is the frequency of the light
80 pF capacitor and a 320 pF capacitor are both charged to 2.8 kV. They are then disconnected from the voltage source and are connected together, Find the resulting potential difference across each capacitor
Suppose that while moving into an apartment you move a refridgerator into place by sliding it across the floor. What is the least force you could exert on the fridge to move it
An unresolved binary system consists of two stars, one has V = 6.00 and (B-V) = .22, and the second star V = 8.50 and (B-V) = 0.12 a) what is the V and B flux density of each star? b) what is the apparent V and B magnitude of the combined system?
a what is the minimum energy eo stored in a resonant lc circuit?b find an expression for the value of capacitance c if
A jet airplane is in level flight. The mass of the airplane is m=8850 kg. at what angle is the airplane banked
suppose a stereo home-audio system draws at most an electrical power of 100 w from the outlet uses a power of 2 w for
Using Faraday's Law, derive the self-inductance per unit length of a long (ideal) solenoid with n turns per unit length, and of radius R. How much energy is stored in this solenoid
two large parallel metal plates are 2.5 cm apart and have charges of equal magnitudes but opposite signs on their
A 91 crate, starting from rest, is pulled across a floor with a constant horizontal force of 390. What is the final speed of the crate
A Carnot engine uses a steam boiler at 100°C as the high-temperature reservoir. Determine the useful power output of the heat engine
A massless spring hangs from the ceiling with a small object attached to its lower end. The object is initially held at rest in a position yi such that the spring is at its rest length. The object is then released from yi and oscillates up and dow..
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