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a brick is initially 772 cm high and an aluminum can is initially 773 cm high by how much should their temperatures be
a refracting telescope has an angular magnification of -9000 the length of the barrel is 1800 m what are the focal
a uniform 12-kg rod that is073 m long is suspended at rest from the ceiling by two springs one at each end of the rod
1 a quantity of steam 550 g at 123degc is condensed and the resulting water is frozen into ice at 0degchow much heat
a wrecking ball weight 4800 n is supported by a boom which might be assumed to be uniform and has a weight of 3200 n
a platinum ring has a mass of 426 g it is lowered into a graduated cynlinder that is full to 5000 ml mark with water
a transformer for an answering machine takes an ac voltage of 170v peak-to-peak or maximum as its input and provides
though human beings have been able to fly hundreds of thousands of miles into outer space getting inside the earth has
a permanent bar magnet has a field strength of 1t assume we have a circular wire loop of radius r050 cm that is
a bubble with a volume of 10 cm3 forms at the bottom of a lake that is 200 m deep the temperature at the bottom of the
the parallel axis theorem provides a helpful way to calculate the moment of inertia i about an arbitrary axis the
the owner of a van installs a rear-window lens that has a focal length of -0330 m when the owner looks out during the
a 160-lb gymnast is executing a series of full-circle swings on the horizontal bar he has a small and negligible
the temperature coefficient of resistivity for the metal gold is00034 cdegminus1 and for tungsten it is 00045cdegminus1
1 a radioactive phosphorus nucleus by atomic number 15 and mass number 32 beta decays by emitting an electron and an
what is the regular pressure on the soles of the feet of a standing807-kg person due to the contact force with the
a solid sphere of mass 0599 kg rolls without slipping along a horizontal surface by a translational speed of 544 ms it
a cylindrical copper cable carries a current of 1330 a there is a potential dissimilarity of160 10-2 v among two points
an iron anchor of density 7870 kgm3 appears 200 n lighter in water than in air1 what is the volume of the anchor2 how
two identical containers are open at the top and are connected at the bottom via a tube of negligible volume and a
an oscillating block-spring system has a mechanical energy of 1j amplitude of 10 cm and a maximum speed of 120 ms
in fig 15-34 2 blocks m 18 kg and m 10 kg and a spring k 200 nm are arranged on a horizontal frictionless surface
a spring k 200 nm is suspended by its upper end supported from a ceiling with the spring hanging in its equilibrium
a vacuum cleaner is plugged into a 1200 v socket and utilizes 30 a of current in normal operation when the back emf
a generator utilizes a coil that has 160turns and a 065 t magnetic field the frequency of this generator is 600 hz and