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From observations of stellar orbits near the center of our Milky Way galaxy, it appears that a massive object exists there with a mass of about 4.1 million times the mass of the Sun. Given that one solar mass is 2.0×1030 kg, what would be the radius of a Black Hole containing this amount of mass? (Just an interesting note: the average radius of the orbit of Mercury from the Sun is about 5.8×1010 m.)
A concave mirror used by a person who is shaving or applying makeup creates a virtual image of the face that is 1.60 times larger than the person's actual face, Determine the image distance and focal length
a 20-ft long non-uniform rod rest with its two ends on scales. when a 120-lb person stands at the geometric center of
Aparallel-plate capacitor has square plates of edgelength 1.2 cm and a platespacing of 0.11 mm. If the gap between the plates is filled with mica, what is the capacitance?
An object is fired at 30.0 m/s at an angle of 35.0 degrees from a vertical cliff that is h meters (where h is unknown quantity) above the sea. calculate the velocity vector of the object
A storage tank 30 m high is filled with gasoline. Calculate the force that acts on a square access hatch at the bottom of the tank measures .5 m by .5 m
A satellite in geosynchronous orbit orbits the earth in 24 hours. find the radial velocity and the angular velocity
Find the focal length of a glass lens that has an index of refraction equal to 1.58, a concave surface that has a radius of curvature of magnitude 104 cm, and a convex surface
what is the magnitude of the approximate magnification of a compound microscope with objective and eyepiece focal
What would be rockets speed after travelling the distance if it weren't tied down to the spring.
Bill can throw a ball vertically at a speed 1.2 times faster than Joe can. How many times higher will Bill's ball go than Joe's
A pendulum has a length L = 1.30m. It hangs straight down in a jet plane about to take off as shown by the dotted line in the figure. The jet then accelerates uniformly, and while the plane is accelerating, the equilibrium position of the pendulum..
A wire carrying .8 A of current is bent into a right angle the j lenght .04m and i .3m. Determine the net force on the wire from the magnetic field
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