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A galaxy is 3.5 Mly away and is imaged with a CCD detector and telescope. The optics of the telescope and the sizes of the pixels in the camera are arranged thus that each pixel sees a 1.0 arc second piece of the sky. Find the physical size of the piece of the galaxy each pixel sees, in parsecs?
If the surface brightness of the galaxies nucleus is 22.3meter as per sq arc second, find the surface density assuming the stars emitting the light are essentially like our sun?
the wavelength of a 63.7-mhz electromagnetic wave is approximatelya. 1.0 mb. 7.4 cmc. 27 md. 4.7
A 121.2 N carton is pulled up a frictionless baggage ramp inclined at 27.0 degrees above the horizontal by a rope exerting a 73.2 N pull parallel to the ramp's surface. Calculate the work done on the carton by the gravity
The archerfish successfully shoots down the resting insect by spitting water drops at the same angle 60^circ above the surface and with the same initial speed v as before. At what height h above the surface was the insect.
A laser with wavelength 650 nm is incident on a single slit with width 10 mm. How far apart will the first dark bands on either side of the central maximum be
gulls are often observed dropping clams and other shellfish from a height to the rocks below as a means of opening the
A solid sphere of radius 40.0 cm has a total positive charge of 30.0 µC uniformly distributed throughout its volume. Calculate the magnitude of the electric field
A block of mass, 578 g is pushed against the spring by spring constant 7.4N/m (located o the left-hand side of the track) and compresses the spring a distance of5.3 cm from the equilibrium position.
A muon is formed high in the Earth's atmosphere and travels at a speed 0.9 c with respect to the Earth. What is the value of the Lorentz gamma factor associated with the muon's motion
If the density and atomic mass of copper are respectively 8.80 103 kg/m3 and 63.5 kg/kmol, Determine the drift speed of the electrons in a 10 gauge copper wire (2.588 mm in diameter) carrying a 19.5 A current
If the pressure on a fish increases from 1.20 to 1.30 atm, its swim bladder decreases a volume from 8.19 mL to 7.56 mL, How much work is done on the air in the bladder
A uniform 1.80m ladder of mass 6.30kg is leaning against a vertical wall while making an angle of 53.0%u2218 with the floor. How much work did this person do against gravity
A flywheel is a solid disk that rotates about an axis that is perpendicular to the disk at its center. Rotating flywheels provide a means for storing energy in the form of rotational kinetic energy and are being considered as a possible alternativ..
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