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an object is projected horizontally what are the three factors which determine the horizontal distance traveled how
a guitars e-string has length 649 cm and is stretched to a tension 846 n it vibrates a fundamental frequency of 32959
two forces f1 -840i 410j and f2 710i 530j are acting on a mass of m 420 kg the forces are measured in newtons what
a gas sample is known to be a mixture of ethane and butane a bulb of 2000 cm3 capacity is filled with the gas to a
when a nucleus of 235u undergoes fission it breaks into two smaller more tightly bound fragments calculate the binding
a glass bulb of volume 0136 l contains 07031 g of a gas at 759 torr and 995 degrees c what is the molar mass of the
a very light spring of equilibrium length 100 cm is hung from the ceiling with a 040 kg block at its end when the
two samples of oxides of carbon were analyzed and one was found to contain to contain 360 g of c and 320 g of o the
you stick two blocks together with velcro the manufacturer rated the velcro as needing a force of 50n to separate the
an engine has a hot reservoir temperature of 969 k and a cold reservoir temperature of 602 k the engine operates at
tension is maintained in a string by attaching one end to a wall and by hanging a 206 kg object from the other end of
how many minutes does it take light from the sun to reach earththe distance from the sun to earth is 93 million mithe
a gas while expanding under isobaric conditions does 458 j of work the pressure of the gas is 165e5 pa and its initial
if you stacked avogadros number of pennies one on top of the other on earths surface how far would the stack extend in
a 080 -long metal rod is dropped vertically onto a marble floor when the rod strikes the floor it is determined
a conducting rod with a length of 25 cm is placed on a u-shaped metal wire that has a resistancerof 80 as shown in the
a wooden block of mass m resting on a frictionless horizontal surface is attached to a rigid rod of length and of
a carnot refrigerator absorbs heat from a space at 15 degrees c at a rate of 16000 kjh and rejects heat to a reservoir
a high-protein diet contains 70 of carbohydrate 160 of protein and 45 of fat how many kilocalories does this diet
when resistors 1 and 2 are connected in series the equivalent resistance is 187 when they are connected in parallel
an experimental space station consists of a large rigid rod with length l 100 m and mass m 10000 kg which rotates
sulfuric acid sold for laboratory use consists of 967 by mass sulfuric acid the rest is water the density of the
a hot-air balloon is accelerating upward under the influence of two forces its weight and the buoyant force for
what is the longest wavelength that can be observed in the third order for a transmission grating having 6700 slitscm
a simple pendulum consists of a ball connected to one end of a thin brass wire the period of the pendulum is 20000 s