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A laser beam is traveling through an unknown substance. When it encounters a boundary with air, the angle of reflection is 22.4° and the angle of refraction is 40.0°.
(a) What is the index of refraction of the substance?
(b) What is the speed of light in the substance?
(c) At what minimum angle of incidence would the light be totally internally reflected?
A pendulum bob with mass of 3.0 kg is suspended from an ideal string a distance of 3.5 m from the ceiling. A 0.004 kg bullet is fired horizontally at a speed of 6.91x103 m/s and imbeds itself in the bob.
A transformer has the voltages 152 Vpri and 50 Vsec. A current 4.0 mA is flowing in the primary. What is the current flowing in the secondary
An electric motor rotating a workshop grinding wheel at 1.06 102 rev/min is switched off. How long does it take the grinding wheel to stop
In a mass spectrometer, a singly ionized 24Mg ion has a mass equal to 3.983 10-26 kg and is accelerated through a 2.80-kV potential difference. Find the radius of curvature of the ion's orbit
A wire coil is connected to a DC power supply of 12.0 volts. The current in the coil is measured to be 375 mA. What is the resistance of the wire coil
A capacitor consists of two parallel plates, each with an area of 16.0 cm2, separated by a distance of 0.250 cm. What is the charge on either plate
A solid marble, a solid disk and a hoop have the same mass (M = 0.9 kg) and the same radius. Each object is held at rest at the same height and then released. what is the force the track exerts on the hoop
A uniform plank of length 6m and weight 211N rests horizontally on two supports, with 1.1 m of the plank hanging over right support. To what distance x can a person who weighs 442N walk on the overhanging part of the plank before it just begins to..
Light wavelength is 510 nm is directed at a double slit, where the distance between the slits is 450 micrometers. How far away is the second minimum from the central maximum
A motorcycle is traveling up one side of a hill and down the other side. Determine the maximum speed that the cycle can have while moving over the crest without losing contact with the road
Nichrome wire of cross-sectional radius 0.758 mm is to be used in winding a heating coil. find the length of wire you must use to wind the coil
The rotational spectrum of the HCl molecule contains lines with wavelengths of 0.0604, 0.0690 ,0.0804 ,0.0964 , and 0.1204 mm. What is the moment of inertia of the molecule
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