A mountain climber friend with a mass of 80 kg ponders the
A mountain climber friend with a mass of 80 kg ponders the ideaof attaching a helium-filled balloon to himself to effectively reduce his weight by 25% when he climbs. He wonders what the approximate size of such a balloon would be.
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a large spherical shell with a mass of 145 kg and radius of 15m isinitially spinning at a rate of 300 rpm a maintenance
a molecule of dna deoxyribonucleic acid is 219 microm long the ends of the molecule becomesingly ionized -- negative on
some european trucks run on energy stored in a rotating flywheel with an electric motor getting the flywheel up to its
when monochromatic light shines perpendicularly on a soap filmn 133 with air on each side the second smallestnonzero
a mountain climber friend with a mass of 80 kg ponders the ideaof attaching a helium-filled balloon to himself to
a 39 a current is set up in a circuit for 59 min by a rechargeable battery with a 90 v emf by how much is the chemical
what force must be applied to push a carton weighing190 newtons up a 11deg incline if the coefficient of
when a certain air-filled parallel-plate capacitor is connectedacross a battery it acquires a charge on each plate of
the wireless connection used by your laptop computer employs electromagnetic waves with a frequency near 24 ghza what
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