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how does the heat fusion of water compare to the heats of fusion of other similar substances how does this difference
during the melting process how does the energy of the molecules of the substance change as a result of the heat it
what is the buoyant force on a sphere that has half its volume submerged in water density 1000 kgm3 if the radius of
a roller-coaster car with a mass ofnbsp650nbspkg starts at rest from a pointnbsp32nbspmnbspabove the ground at point b
a roller-coaster car has a potential energy ofnbsp441 000nbspj and a kinetic energy ofnbsp112 800nbspj at point a in
a spinning top initially spins at 16rads but slows down to 12rads in 18s due to friction if the rotational inertia of
treat a burning log as a black object with a surface area of 09 m2 when you blow air on the log its temperature rises
the amusing spiderguy mass m 60 kg hangs from his web which is attached to a thin horizontal beam mass m 100 kg see
write two or three sentences describing the mass number charge and penetrating ability of alpha
what current flows through anbsp204nbspcmnbspdiameter rod of pure silicon that isnbsp175nbspcmnbsplong whennbsp1000
a copper wire has a resistance ofnbsp0570nbspomeganbspat 200degc and an iron wire has a resistance
ohms lawresistors typically are sold commercially have tolerances of either plusmn5 of plusmn10 of their theoretical
a 10 kg mass hanging vertically from the bottom of an inverted cone is held in place by a 20 kg wheel that is rolling
a point mass of 15kg is attached to a spring and set to oscillate through simple harmonic oscillations if the period of
the average period of pendulum clock is found to be 12s at sea level the period of the same pendulum on a mountain top
a 05-kg ball has a velocity of 24 ms how much work would be required to stop the
an electron enters a magnetic field of 069 t with a velocity perpendicular to the direction of the field of 300ms
intro to physics questionthe average amount of water that flows over a certain waterfall is 165 times 105 lsnbspexpress
when temperature is expected to drop below freezing a farmer places large tubs of w water in an unheated food storage
jerry has managed to hack into the operating software of mechano mm 250 kg the evil robot cat the picture shows jerry
tom mt 200 kg is chasing jerry mj 0500 kg as you can see both are running toward the right toms velocity is vt 250
anbspas a city planner you receive complaints from local residents about the safety of nearby roads and streets one
1 albert pushes a 6-kg box across a level floor he pushes with a force of 43 newtons and observes that the box
a 375-kg box is pulled up a ramp that is inclined at an angle of 330deg with respect to the horizontal as shown below
a thick spherical shell of charge q and uniform volume charge density rho is bounded by radii r1 and r2 gt r1 with v 0