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given a series circuit of a 24 volt dc power supply a switch a 47 komega resistor and two 100 muf capacitors in
a radiation detector is in the form of a circular disc of diameter30 cm it is held 25cm from a source of radiation
a coal-fired power station burns coal with 30 moisture contentthe composition of the dried sample is found to contain
1 give the formula for the covariance between two random variables and if and area discrete nbspb continuous2 let z be
on sept 8 2004 the genesis spacecraft crashed because the parachutedid not open the 210kg capsule hit the ground at
you have a convex lens of focal length 3cm and na06 light diffracts from two pinholes separated by a distance d what is
an 80-cm-long wire is made by welding a 12 mm-diameter 20-cm-long copper wire to a12 mm-diameter 60-cm-long iron wire
a 12-kg block is held against a spring of force constant 10 x104 nm compressing it a distance of 015 m how fastis the
equak amounts of heat are added to equal masses of iron and silver at the same initial temperaturea which metal will
a 51kg packing crate is pulled with constant speed across a rough floor with a rope that is at an angle of 435o above
an electric motor is plugged into a wall socket and is running at normal speed suddenly some dirt prevents the shaft of
charles drags a box of mass 70kg across a floor at constant speed using a massless horizontal rope the coeffiecent of
as a space shuttle moves through the dilute ionized gas ofearths ionosphere the shuttles potential is typically changed
1 in any collision if we find that momentum is not conserved it must mean thata the digital video camera used to record
suppose the space shuttle is in orbit 320km from the earths surface and circles the earth about once every909 minutes
a certain wire has a resistance of 140 omega what is the resistance of a second wire made of the same material that is
in a television picture tube electrons strike the screen afterbeing accelerated from rest through a potential
how much steam must be mixedwith 300g of water in 155 g aluminum calorimeter initially at 200degrees c to obtain a
a 51 g marble is fired vertically upwardusing a spring gun the spring must be compressed 80 cm if themarble is to just
two waves of equal amplitude a meet on a string and make a new wave of amplitude 15a what is the smallest relative
at what rate is heat lost through a 10 m 15 m rectangular glass windowpane that is 5 cm thick when the inside
nbsptrue or false select all that apply1 all parts of a wheel rotating about a fixedaxis must have the same angular
a positive charge q1 is located to the left of a negative charge -q2nbsp on aline passint through the two charges theer
in a region of space where the electric field is constant everywhere as it is inside a parallel plate capacitor is the
the coefficient of linear expansion of a certain solid is 9 10-6c degrees assuming this solid behaves like most solids