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The angle of refraction for a ray of light traveling through an ice cube is 35 degrees,
(a) now suppose the ice melts, but the angle of refraction remains the same, is the corresponding angle of incidence greater than, less than, or the same as it was for the ice? Explain.
(b) Calculate the angle of incidence for part (a).
An electron is accelerated from rest during a potential difference of 800 V. It then moves perpendicularly to a magnetic field of 30 G. Discover the radius of its orbit and its orbital frequency.
A horizontal block-spring system with the block on a frictionless surface has total mechanical energy E = 49.2 J and a maximum displacement from equilibrium of 0.280 m.
How to compute for the density of dark matter estimate mass density of dark matter in the solar neighbourhood. Express the answer in units of kg m-3, Msun pc-3, Msun AU-3.
A 9.40 10-3 kg bullet is fired horizontally into a 2.64-kg wooden block attached to one end of a massless, horizontal spring (k = 853 N/m). What is the speed of the bullet
A generator consists of 23 loops, each with an area of 0.010m^2 located inside a uniform magnetic field of 2.0T. What is the rms voltage
A $100 cart is moving down an inclined plane at 1.30 m.s, The cart collides with a stationary object and rebounds with a speed of 0.970 m/s. What was the change in momentum
question a certain superconducting magnet in the form of a solenoid of length 0.350 m can generate a magnetic field of
Suppose a 5.40 m diameter telescope were constructed on the Moon, what minimum separation between two objects
You're 6.0 m from one wall of a house. You want to toss a ball to your friend who is 6.0 m from the opposite wall. The throw and catch each occur 1.0 m above the ground
It compresses the spring, and then is pushed back in the opposite direction by the spring, eventually losing contact with the spring.
A horizontal board weighing 205.0 N is supported at points A and B in the figure below. The plank servesas a platform for a painter, who weighs 604.5 N. Find the maximum distance D, suchthat the plank will not tip, no matter where the painter stands.
Two slits spaced 0.450 mm apart are placed 76.0 cm from a screen. What is the distance between the second and third dark lines of the interference pattern on the screen
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