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A glass is half-full of water, with a layer of vegetable oil(n = 1.47) floating on top. A ray of light travelingdownward through the oil is incident on the water at an angle of70.3°. Determine the critical anglefor the oil-water interface.
Will the ray penetrate into the water?
q1. for the beam given in the figure below assume that the material is astm-a514 steel with elastic modulus and e
What percentage of the neutrons would not interact if the concrete slab were made 36.0 cm thick? I know this is 1.305x10^1. B) How many centimeters thick would the concrete need to be so that 18.0 per cent of the neutrons are transmitted?
If a loop of chain is spun at high speed, it can roll along the ground like a circular hoop without collapsing. consider a chain of uniform linear mass density ? whose center of mass travels to the right at a high speed Vo. Determine the tension in t..
To celebrate a victory, a pitcher throws her glove straight upward with an initial speed of 6.5 m/s, How long does it take for the glove to return to the pitcher
Two 1.90-cm-diameter disks spaced 2.10mmapart form a parallel-plate capacitor. The electric field between the disks is 5.10×105V/m, What was the electron's speed as it left the negative plate
A golfer imparts a speed of 28.7m/s to a ball, and it travels the maximum possible distance beforelanding on the green. How much time does the ball spend in the air
A 66.5kg astronaut is doing a repair in space on the orbiting space station. She throws a 2.30kg tool away from her at 3.10m/s relative to the space station, With what speed will she begin to move
A rectangular metal block is 0.6 m long, 0.2 m wide, and 0.1 m tall. The block weighs 270 N. What is the density of the fluid
A block of aluminum with mass 10.0 g absorbs 176 calories of heat energy as it is heated from 20.0 oC to 100. oC. How much heat does the aluminum release
Two parallel wires are 61 cm apart. Each wire is 4 cm long. One wire is a carrying a current of 23 A and the other wire is carrying a current of 21 A. Both currentsare going in the same direction. Determine the force between the two wires.
A woman holds a tube of lipstick 8 cm from a spherical mirror and notices that the image of the tube is upright and one third its normal size. find what is the position of the image
There is a current of 0.83 A through a lightbulb in a 120 V circuit. What is the resistance of this lightbulb
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