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What is the minimum thickness of coating which should be placed on a lens in order to minimize reflection of 529nm light? The index of refraction of the coating material is 1.53 and the index of the glass is 1.60.
A cube of ice, 27 cm on each side, is melted into a measuring cup. What is the volume of the liquid water
q1. in a gas at standard temperature and pressure what is the length of the side of a cube that contains a number of
The resistor is connected in series with total set of lightbulbs. What is the value of the resistance? What is the power loss in the resistor.
Eight books, each 4.9 cm thick with mass 1.2 kg, lie flat on a table. How much work is required to stack them one on top of another.
what is the equivalent resistance between points A and B?
A Carnot engine operates between temperatures of 747 and 324 K. Calculate what the efficiency would be if (a) the temperature of the hot reservoir were raised by 42.5 K or (b) if the temperature of the cold reservoir were lowered by 42.5 K. (Give ..
A 81.0kN spaceship comes in for a vertical landing. From an initial speed of 1.00 km/s, What braking force must its rockets provide
a stone is projected at a cliff of height h with an initial speed of 49.0 m/s directed at an angle ?0 = 63.0° above the horizontal. The stone strikes at A, calculate the speed of the stone just before impact
A billiard ball moving at 6.00 m/s strikes a stationary ball of the same mass. After the collision, the first ball moves at 4.94 m/s at an angle of 34.5° with respect to the original line of motion, find the struck ball's velocity after the collisi..
When two tuning forks of 146Hz and 161Hz, respectively, are sounded simultaneously, how many beats per second are heard.
A one-meter long stick ("meter stick") has mass 120 grams, and is hinged at one end (pivot). Calculate the rotational inertia of the stick
A Carnot engine works between two heat reservoirs at temperatures Thot= 314.0 K and Tcold= 225.0 K. What is its efficiency? How much heat does it reject during each cycle
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