A marble moving 1.48 m/s rolls off the top edge of a 125-cm high table in a room where there is no appreciable air resistance and the acceleration due to gravity is 9.80 m/s2
(a) How far from the base of the table will it strike the floor?
(b) How long will it be in the air?
(a) 75.0 cm (b) 0.505 s
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Gravitational lensing
a. occurs when light passes near a massive object and is deflected by the object's gravitational field. b. can be used to determine the luminosity of a galaxy. c. occurs when the mass of a galaxy is greater than expected from the luminosity of the galaxy. d. occurs when the mass of a galaxy is less than expected from the luminosity of the galaxy. e. can be used to determine the recessional velocity of a galaxy.
When aqueous solutions of Na2CO3 and BaCl2 are mixed, the products are NaCl and ______________
Fill in the blank(s) with correct word
Why can many more people witness a total lunar eclipse than a total solar eclipse?
What will be an ideal response?
An RLC series circuit has R = 100 ohms, C = 25 ?F, and L = 0.16 H. For what angular frequency of an AC voltage is the current flow maximum?
A. 251 rad/s B. 500 rad/s C. 757 rad/s D. 884 rad/s E. 79.6 rad/s