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Question: An aquarium filled with water (nwater = 1.33) has flat glass sides whose index of refraction is 1.58. A beam of light from outside the aquarium (n air= 1.00) strikes the glass at an angle of 30.0 degrees as measured from outside of the glass to the incident light ray. What is the angle of refraction when:
A) The light rays enters the glass from air?
B) the light ray enter the water from the glass?
C) what is the critical angle from the glass to the water?
A X-ray with a copper target is operated at 44mA and 40kV. If the X-ray tube current is reduced to 40mA, what will be the percent change in the number of Cu K x-rays that are produced with the x-ray tube?
q. suppose that you hear a clap of thunder 15.90 s after seeing the associated lightning stroke. the speed of sound
A non-conducting charged sheet and a non-conducting sphere (radius b) are arranged as shown in the figure. The right-most surface of the sheet is at x=0 and the center of the sphere is on the x-axis at x=xnaught. The sheet has a positive uniform char..
A microphone is attached to a spring that is suspended from the ceiling. Directly below on the floor is a stationary 412-hertz source of sound. determine the amplitude of the simple harmonic motion.
One mole of neon gas is heated from 364 Kto 410K at constant pressure. Calculate the change in the internal energy of the gas
A constant horizontal force moves a 50 kg trunk 7.0 m up a 26° incline at constant speed, What is the increase in the thermal energy of the trunk and incline
Ultraviolet light with a wavelength of 10.0 nm shines on a gas of hydrogen atoms in their ground states. Some of the atoms are ionized by the light. What is the kinetic energy of the electrons that are freed in this process?
A streptococcus bacterium can reproduce itself in about 30 minutes if there is adequate nutritional materials and appropriate conditions. They are using the materials in your body to build themselves. Suppose one bacterium gets in your system and ..
Given that the Bohr radius for the lowest energy in hydrogen is a,, = 0.5 A. derive an approximate numerical value on the basis of Newtonian mechanics for the radius of the smallest Bohr orbit about the uranium nucleus.
Your friend has a pair of fuzzy dice with a mass of 1.19 gram hanging from his rear-view mirror, Find at what angle to the vertical will the tension in the string be twice the weight of the dice
The radius of a black hole is the distance from the black hole's center at which the escape speed is the speed of light. What is the radius of a black hole with the same mass as that of the Earth
A 8-m long wire with a mass of 10 g is under tension. A transverse wave for which the frequency is 450 Hz, the wavelength is 0.9m, and the amplitude is 8.6 mm is propagating on the wire. What is the maximum transverse acceleration of a given point..
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