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contrast the center of gravity cg and center of mass cm of the moon suppose the moon is spherical and centered means
a converging lens has a focal length of 20 cm a 1 cm tall object is placed 35 cm in front of the lens find the image
1 when a rock thrown straight upwards gets to the exact top of its path itsa velocity is about 10 ms and its
a car is designed to get its energy from a rotating flywheel by a radius of 150 m and a mass of 400kg before a trip the
emilies potters wheel rotates by a constant 210rads2 angular acceleration after 380 s the wheel has rotated through an
a cubical piece of heat-shield-tile from the space shuttle measures 015 m on a side and has a thermal conductivity of
a baking dish is removed from a hot oven and placed on a cooling rack as the dish cools down to 320degc from 172degc
de broglie postulated that the relationship lambda hp is valid for relativistic particles what is the de broglie
you are driving down a two-lane country road and a truck in the opposite lane is traveling toward you assume that the
a hydraulic jack is made by a small piston 13 cm in diameter that is utilized to move a large piston 61 cm in diameter
a sealed glass jar contains air initially at a pressure of 100 atm and nbsptemperature of 0deg c discover the air
if the phase angle for a block-spring system in shm is pi8 rad and the blockrsquos position is given x xm cosomegat
a resistor r 820 omega a capacitor c 034 microf and an inductor l 300 h are connected in a series across a 60 hz ac
a cylinder contains 35 rm l of oxygen at350 rm k and 24 rm atm the gas is heated causing a piston in the cylinder to
a rigid container of nitrogen gas n2 at 23deg c contains 435 l at a pressure of 35 atm if 266 kj of heat are additional
a 25 kg container of water sits on a scale a a cube of aluminium with sides of length 90 cm is suspended from a spring
lens l1 had a focal length of 15cm and is located a fixed distance in front of the film plane of a camera lens l2 had a
a 0655kg stone is moving in a vertical circular path attached to a string that is 680cm long the stone is moving around
a coil has an inductance of 70 mh and the current in it changes from 016 a to 1 a in 015 s discover the magnitude of
the last stage of a rocket is traveling at a speed of7800 ms this last stage is made up of two parts that are clamped
a 140 v battery is connected in series by a resistor and an inductor the series circuit has a time constant of 600
a contact lens is made of plastic by an index of refraction of 148 the lens has an outer radius of curvature of 190 cm
a square single-turn coil 022 m on a side is placed by its plane perpendicular to a constant magnetic field an emf of
a rigid container of nitrogen gas n2 at 23deg c contains 435 l at a pressure of 35 atm if 266 kj of heat are added to