What is the maximum weight that a balloon full with 100
What is the maximum weight that a balloon full with 1.00 m3 of helium can lift in air? Suppose that the density of air is 1.20 kg/m3 and that of helium is 0.177 kg/m3. Neglect the mass of the balloon.
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the concorde travelled 8000 km among two places in north america and europe at an average speed of 375 ms what is the
what is the maximum weight that a balloon full with 100 m3 of helium can lift in air suppose that the density of air is
a rifle is fired in a valley with parallel vertical walls the echo from one wall is heard 20 s after the rifle was
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the lowest note on an organ is 164 hz1 what would be the pitch if the same organ pipe were closed2 what is the shortest
a simple harmonic oscillator placed in a resisting medium consists of a 100-g mass attached to a spring whose force
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