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a flash light is at the bottom of a 2m deep poola find the critical angle of incidence for the light that is trapped or
a a 900 linemm diffraction grating is illuminated by light of wavelength 600 nm how many bright fringes are seen on a
calculate the position that a lens should be placed in order to achieve the maximum magnification the length between
a mass m is lowered gently onto a vertical spring of length l with spring constant k until it just touches the spring
can someone explain to me how to find the centroid of a shaded area i know there are two ways double integral and
a weightlifter snatches a 1200 n weight by exerting a 1400 n average force for the first meter off the ground then
what are typical densities c pressures pc and temperatures tc in cores of stars and how does this depend on mass and
for the following diagram y 36 cm x 30 cm z the distance from the y axis to the center of the circle equals 12 cm
the kinematics and dynamics of rotation around a fixed axis of a rigid body are mathematically much simpler than those
a cafeteria tray dispenser supports a stack of trays on a shelf hangs from four identical spiral springs under tension
a metallic sphere 1 of radius 100 cm is far away from a metallic spherical shell 2 of radius 200 cm charge 450 nc is
sun is falling towards a supermassive black hole in the centre of a galaxy at some point the star will start to be torn
the sketch at the left shows a square loop of wire its resistance is 5 ohm its dimensions are shown a 40 cm b 50 cm
the director james cameron recently went in a submersible 1 man submarine to the bottom of the mariana trench find out
the diagram below depicts a cross section of coaxial conductor with an inner wire of diameter di and an outer
a parallel-plate capacitor with plates of area 441 cm2 is charged to a potential difference v and is then disconnected
suppose you are old and as a last act want to see for yourself what it is to cross an event horizon knowing you cannot
a system receives 107 joules in the form of heat energy in a specified process and it produces work of 4106 joules the
a very long solenoid of radius a and height h has n closely wound turns of coil suppose there is an increasing current
a magician pulls a tablecloth from under a 200 g mug located 300 cm from the edge of the cloth the cloth exerts a
air which may be treated as an ideal gas is compressed from 100 kpa to 1500 kpa in a quasisatatic manner so that it
can you explain each step please im really bad in chemistry and i dont know whats delta n in generalif 0245 mol of
how many moles of solid ban032 should be added to 300ml of 020 mfen032 to increase the concentration of the n03 ion
a sample of neon is compressed from a volume of 650 l to a volume of 130 l by an external pressure of 120 bar at
1 determine the pressure in a 034l balloon if the temperature is 35celcius and the balloon contains 00233 mol of an