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a ball and a thin plate are made from different materials and have the same initial temperature the ball does not fit
the surface temperature of star y is 8100 k and the power output of the star is 530e27 w if the temperature increases
with an internal pressure of 5245e6 a two mole sample of ideal gas at 200degc in a container of volume 15l is increased
by holding a magnifying glass 24 cm from your desk lamp you can focus an image of the lamps bulb on a wall 16m from the
an engineer wants to find the rotational inertia of an odd-shaped object of mass 90 kg about an axis through its center
a 090-kg block is suspended from a spring with a spring constant of 6400 nm a 0030-kg bullet is fired into the block
a lens with 50-cm focal length produces a real image the same size as the objecta how far from the lens is the objectb
a string 14 m long with a mass of 21 g is stretched between two fixed points with a tension of 80 n find the frequency
a 230g baseball is pitched at 32ms and its spinning at 44 rads what fraction of its kinetic energy is rotational treat
when a 60 n stone is attached to a spring scale and is submerged in water the spring scale reads 35 n what is the
an elephant has legs that stretch 23 from its shoulders to the ground how much time is required for one leg to swing
a 432 kg woman balances on one heel of a pair of high-heeled shoes if the heel is circular with radius 0692 cm what
one generator uses a magnetic field of 015 t and has a coil area per turn of 0045 m2 a second generator has a coil area
a teenager pushes tangentially on a small hand-driven merry-go-round and is able to accelerate it from rest to a
you observe that a solid cube of some material floats on the surface of an oil puddle at a service station with 759 of
during the supine bicycle exercise analysis the shoulder the hip and the knee during the movement phase what motions
bowling balls are roughly the same size but come in a variety of weights given its official circumference of roughly
a pipe of diameter 65 cm carries water without turbulence the velocity of the water is 153 cms downstream from this
a 0250 m radius 500-turn coil is rotated one-fourth of a revolution in 417 ms originally having its plane perpendicular
two clarinets are sounding tones of 190 hz and 192 hz respectively what is the beat frequency between the third modes
a particular heat engine has a mechanical power output of480kw and an efficiency of260 the engine expels890103j of
the vibration of a diatomic molecule can be modeled as a simple harmonic oscillator the values for the mass and force
an asteroid has acquired a net negative charge of 119 c from being bombarded by the solar wind over the years and is
a copper-constantan thermocouple generates a voltage of 503 10-3 volts when the temperature of the hot junction is
a styrofoam calorimeter contains 400g of water at 50degc to this we add 20g of ice at initial temperature of 0degc