A block of weight 45 n is at rest on a horizontal table an
A block of weight 4.5 N is at rest on a horizontal table. An upward vertical force of 2.2 N is applied to the block by means of a string. What is the magnitude of the force exerted by the block on the table top?
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a beam of light in air strikes a slab of glass n 156 and is partially reflected and partially refracted find the angle
a proton travels with a speed of 29times106 ms at an angle 44 degrees with a magnetic eld of 099 t pointed in the y
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at the equator near earths surface the magnetic eld is approximately 645 microt northward and the electric eld is about
a block of weight 45 n is at rest on a horizontal table an upward vertical force of 22 n is applied to the block by
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an inductor l 400 mh a capacitor c 443 microf and a resistor r 500 are connected in series a 540-hz ac generator
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