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a habitable star system is about 12 light years from the earth a twin astronaut from earth leaves his sibling behind on
a 20 cm diameter 40 m long plastic rod has 12 micro c excess charge distributed evenly throughout its volumea what is
consider two fragments of dna of radius r1 31 nm and r2 38 nm when they are coiled up as they move through a gel an
quarks have spin frac12the baryons protons neutrons are bound states of three quarks mesons pions kaons are bound
can you calculate the pi of the following peptide phe-lys-glu-asp-lys-ser-alanote there is only one alpha carboxyl at
1 you are tracking the movement of a patch of lipid bilayer on a phagosome that has just fused with a lysosome what is
in a standard mass spectrometer two isotopes of hydrogen are being measured for their relative aboudance in a smaple of
a piano is tuned to a frequency of 44000 hz when it and the g string of a guitar are sounded together 30 beats are
in the picture below is a proposed roller coaster track each car will start from rest at point a and will roll with
a stack of n ideal polarizers is arranged so that the transmission axes of the first and last polarizers are
the picture below shows a wire loop composed of two circular arcs and two straight pieces the twocircular arcs are
a square loop of wire with side length 10 cm is moving to the right with constant speed of 16 ms the loop has total
a square loop sides a b c d 11 cm i 11 a lies in the vertical yz plane looked at from the right the current is
pictured on the right are thee point charges q1 184 muc q2 -336 muc and q3 573 muc arranged according to the figure
pictured is a thin non-conducting disk of radius r 952 cm containing an overall charge q -900 mc all of which resides
a piece of iron is heated with a torch to a temperature of 583 k how much more energy does it emit as blackbody
a piece of thin uniform wire of mass m and length 3b is bent into an equilateral triangle find the moment of inertia of
a piece of wood with a density of 766 kgm3 is tied with a string to the bottom of a water-filled flask the wood is
the square loop with side length 2m is perpendicular to a 3t magnetic field over a period of 10 s the field increases
a pilot performs an evasive maneuver by diving vertically at 230ms part a if he can withstand an acceleration of 80 gs
a square loop with a resistor is in a magnetic field which varies in strength determine and explain the direction of
a square current-carrying loop with 12 turns is in a region with a uniform magnetic field the maximum torque exerted on
a square box with no fixed axis acted on by three horizontal forcesin the figure below the mass of the square box is
we have a pipe that is closed at both ends and we want to cut it into three peices so that one pipe produces a
a pipe tapers out from an initial area a1 66x10-2 m2 to a final area a2 that is nine times as large over a distance d