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A distant galaxy emits light that has a wavelength of 500.7 nm. On earth, the wavelength of this light is measured to be 503.7 nm.
a) Decide whether this galaxy is approaching or receding from the earth.
a point charge causes an electric flux of -576 n-m2c to pass through a spherical gaussian surface of 12.0 cm radius
The index of refraction for red light in water is 1.331, and thatfor blue light is 1.340. If a ray of white light enters the waterat an angle of incidence of 88.20°, what are the under water angles ofrefraction for the blue and red components of the ..
Throughout a nuclear reactor accident, 570 m3 of water at 20o C is pumped into the reactor core which is producing heat at the rate of 250 MW. If the water is allowed to boil at normal atmospheric pressure how long would it take to boil away all this..
A metallic sphere has a charge of +4.4 nC. A negatively charged rod has a charge of -6.0 nC. When the rod touches the sphere, 7.2 109 electrons are transferred. What are the charges of the sphere and the rod now? sphere nC rod nC
an electron of mass 9.11x10-31 kg has an initial speed of 2.40x105 ms. it travels in a straight line and its speed
A train moving at a constant speed of 63.0 km/h moves east for 33.0 min, then in a direction 41.0° east of due north for 24.0 min, and then west for 44.0 min. What is the average velocity of the train during this run? Magnitude 1 km/h Direction 2° (c..
A closely wound circular coil with a diameter of 4.00cm has 600 turns and carries a current of 0.500 A. What is the magnetic field at the center of the coil?
q1. two large flat sheets of insulating material are parallel to each other one has a uniform surface charge density of
The nonconservative wind and lift forces take the balloon up, doing +9.70 104 J of work on the balloon in the process. Illustrate at what height above the surface of the earth does the balloon have a speed of 8.90 m/s?
At an amusement park there is a ride in which cylindrically shaped chambers spin around a central axis. What is the radius of a chamber
An airplane accelerates down the runway. Assume the jetengines exerts a constant force on the airplane and assume airresistance is porportional to the velocity squared. What is the terminal velocity
A bird feeder in the shape of a 50-cm-diameter disk of mass 340 g, suspended by a wire with torsional constant 5.00N?m/rad, What is the mass of the birds, assuming they have the same mass
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