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the index of refraction for red light in water is 1.331 and that for blue light is 1.340. If a ray of white light enters the water at an angle of incidence of 64.95°, what are the underwater angles of refraction for the blue and red components of the light?
A street lamp weight 164N. It is supported equally by two wires that form an angle of 129 degrees with each other. What is the tension of each of these wires.
Steam at 100°C is added to ice at 0°C, Find the amount of ice melted and the final temperature when the mass of steam is 14.0 g and the mass of ice is 52.0 g
A 50-m length of wire is stretched horizontally between two vertical posts, Find the magnitude of the earth's magnetic field at the location of the wire, assuming the field makes an angle of 67.0° with respect to the wire
A typical nuclear power plant delivers heat from the reactor to the turbines at a temperature of 480°C. what is the maximum possible efficiency of these turbines
A ball is kicked with an initial velocity of 15.5 m/s in the horizontal direction and 10.5 m/s in the vertical direction, At what speed does the ball hit the ground in m/s
A 0.5 kg block of ice is sliding by you on a very slippery floor at 2.5m/s. As it goes by, you give it a kick perpendicular to its path. Your foot is in contact with ice block for 0.0025 seconds.
A screen is placed 1.40m behind a single slit. The central maximum in the resulting diffraction pattern on the screen is 1.60cm, What is the distance between the two second-order minima
An oscillator with a mass of 530 g and a period of .80 s has amplitude that decreases by 2 percent during each complete oscillation. At what time will the energy be reduced to 33 percent of its initial value.
Suppose you have an electric hot water heater for your house which is an aluminum cylinder which has a 0.44 m radius and is 1.8 m high. The walls are 1.0 cm thick.
A tourist takes a picture of a mountain 14 km away using a camera that has a lens with a focal length of 50 mm, What is the ratio of the height of the mountain's image on the camera's image
A charge Q is transferred from an initially uncharged plastic ball to an identical ball 11cm away. The force of attraction is then 19mN. How many electrons were transferred from one ball to the othe
At a factory, a noon whistle is sounding with a frequency of 491 Hz. As a car travelling at 78 km/h approaches the factory, the driver hears the whistle at frequency fi. After driving past the factory, the driver hears frequency ff. What is the chang..
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