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the index of refraction of a certain liquid is 16 what is the critical angle for a light ray traveling in this liquid
a point source of light is 863 cm below the surface of a body of water find the diameter of the circle at the surface
a 21-m-long vertical pole extends from the bottom of a swimming pool to a point 500 cm above the water sunlight is
a 310 turn solenoid with a length of 220 cm and a radius of 140 cm carries a current of 230 a a second coil of four
when a rectangular metal tank is filled to the top with an unknown liquid observer o with eyes level with the top of
a metal rod is forced to move with constant velocity along two parallel metal rails connected with a strip of metal at
a square wire loop with 15 m sides is perpendicular to a uniform magnetic field with half the area of the loop in the
shows a particle with positive charge q 160 x 10-19 c is moving with speed v 843 x 104 ms toward a long straight wire
a wire 245 m long carries a current of 192 a and makes an angle of 488deg with a uniform magnetic field of magnitude b
an electric field of 186 kvm and a magnetic field of 0515 t act on a moving electron to produce no net force if the
an rlc circuit has voltage supplied to it at a frequency of 31 khz with a phase difference between the current and the
a series rlc circuit has a peak current of 2 a with a frequency of 87 khz if the resistance of the circuit is 56 kohms
for an rlc circuit with a resistance of 15 kohms a capacitance of 9 uf and an inductance of 31 h what frequency is
a series circuit has a 50 hz ac source a 20 ohm resistor a 06 h inductor and a 40 f capacitor as shown the rms current
an incident beam of photons is scattered through 1385deg the wavelength of the scattered photons is 12466 pm what is
a certain camera has f-numbers that range from 1 to 20 if the focal length of the lens is 51 mm what is the range of
light of wavelength 550 nm falls on a 050 mm wide slit and forms a diffraction pattern on a screen 17 m awaya find the
a possible means for making an airplane invisible to radar is to coat the plane with an antireflective polymer if radar
a thin layer of liquid methylene iodide n 1756 is sandwiched between two flat parallel plates of glass n 150 what
a spherical mirror is to be used to form an image five times as tall as an object on a screen positioned 42 m from the
a dedicated sports car enthusiast polishes the inside and outside surfaces of a hubcap that is a section of a sphere
while looking at her image in a cosmetic mirror dina notes that her face is highly magnified when she is close to the
an object is placed 20 cm from a concave mirror of radius 19 cma find the location of the image enter in cm use a
when the minimum angle of deviation of a light ray passing through an isosceles triangular prism is 36 degrees and its