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the amount of gravititional force that acts on the space shuttle while in orbit is
almost as much as the shuttles weight on the earths surface
as a high altitude balloon sinks lower and lower into the atmosphere it undergoes a decrese in
the best time for digging clams(when the low tide is extra low) is during the time of
new or full moon
buoyant force is greatest in a submerged
1 cubic cm block of lead
1 cubic cm block of aluminum
its about the same
compared to the atoms that make up the bpdy of an elderly person, the atoms that make up the body of a newborn baby are
the same age
A heavy glass ball is placed in a pie pan that floats in a bucket. The water level at the side of the bucket is marked. Then the glass ball is removed and allowed to sink in the bucket. The water line at the side of the bucket is now?
if one neutron is removed from an ordinary helium nucleous the result is
a lighter isotope of helium
if the mass of one planets is halved, and distance between them is halved, then the force inbetween them is
twice as much
in an electrically neutral atom the number of protons in the nucleous is balanced by an equal number of
little space can be left between columns supporting a stone slab otherwise the slab will
crack from the bottom up because stone is wear under tension and strong under compression
a metal block has a mass of 40g and a volume of 8 cubic centimeters a block of another kind of metal with a volume of 6 cubic centimeters is twice as dense as the first block. the mass of the second block is
an unstretched hanging spring is 50 cm long. suspending a 100n weight from it makes its weight 60 cm adding an additional 200n weight will make the springs length?
the weight of a 1 square meter column of air that extends from sea level to the top of the atmosphere is about
1000000N or 11 tons
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