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A ray in air is incident on a glass plate whose index of refraction is 1.68. Determine the angle of refraction is one-half the angle of reflection. The angle of refraction is closest to?
A pail of water is rotated in a vertical circle of radius 1.0 meter. Find what two external forces act on the water in the pail
A box weighing 250-N is supported by the cable; the tension in the cable is 120-N. How much time elapses as box falls (starting from rest) 15.0 m.
part a a small cube m0.690 kg is at a height of 327 cm up a frictionless track which has a loop of radius r 49.05 cm
when the reindeers pull the sled with a force of 800n through the snow it is moving with a constant speed of 5 ms.this
An ideal monatomic gas is contained in a vessel of constant volume 0.270 m3. The initial temperature and pressure of the gas are 300 K and 5.00 atm, respectively. Find the change in temperature of the gas
Red light travels at 2.07×108 m/s in a particular type of oil. What is the index of refraction for red light in the oil
an electron starts from rest 2.84 cm from the center of a uniformly charged sphere of radius 2.19 cm. if the sphere
A 750g aluminum pan is removed from the stove and plunged into a sink filled with 10.0kg of water at 20.0C. What was the initial temperature of the pan
Heather and Matthew walk eastward with the speed of 0.99 m/s east. If it takes them 37 minutes to walk to the store, how far have they walked? Reply in units of km.
The average intensity of solar radiation incident on the upper atmosphere of the earth is 1390 W/m2. Assuming the sun emits radiation uniformly in all directions, evaluate the total power radiated by the sun.
Two trains, each having a speed of 27 km/h, are headed at each other on the same straight track. What is the total distance (in km) the bird travels
A model of a red blood cell portrays the cell as a sphericalcapacitor, a positively charged liquid sphere of surface areaA separated from the surrounding negatively charged fluidby a membrane of thickness t.
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