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Suppose a blazar at z=1.00 goes through a fluctuation in brightness that lasts one week (168 hours) as seen from Earth.
(a) At what speed does the blazar appear to be moving away from us?
(b) Using the idea of time dilation, determine how long this fluctuation lasted as measured by the astronomer within the blazar?s host galaxy.
(c) What is the maximum size (in AU) of the region from which this blazar emits energy?
A parallel-plate capacitor with plate area 4.0 cm^2 and air-gap seperation 0.50 mm is connected to a 12-V battery, and fully charged. What is the charge on the capacitor
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Another laser amplifier gives an output of 5I0 when it receives input intensity I0 tuned to w0, the centre frequency of the laser transition. When the input radiation istuned to nearby angular frequency w1
An automobile traveling at 15.0 km/h along straight level road acceleration to 65 km/h in 6.00 second. obtain the magnitude of the auto average acceleration
For a double-slit experiment with slit spacing 0.2 and wavelength 600, at what angular position is the path difference equal to one-fourth the wavelength.
A 1.2 m long 1.7 kg horizontal rod is able to pivot regarding one end. A 35 gm bullet strikes and becomes embedded in the rod at its other end. The bullet is originally moving at 250 m/s and the rod is initially stationary. What is the angular speed ..
A ball is thrown upward with a speed of 34 meter per second from the edge of a cliff of height h = 14 meter. Find the speed of the ball when it hits the ground
An emf is induced in a conducting loop of wire 1.14m long as its shape is changed from square to circular, Find the average magnitude of the induced emf if the change in shape occurs in 4.23s
A 0.150kg toy is undergoing SHM on the end of a horizontalspring with a force constant 300 N/m. estimate the maximum speed attained by the object duringits motion
c denotes partial differentiation wrt coordinate xc and c denotes covariant differentiation wrt coordinate xc .1.
A charged line of linear charge density ? has been bent into a circular arc of radius r that makes an angle ? with its center. (A). Find the magnitude of the electric field at the center of this arc. (Does your result make sense, what should it be..
sound source a is located at x 0 y 0 andsound source b is place at x 0 y 2.9 m. the two sources radiate coherently
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