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The minimum rays needed to form an image by a spherical mirror is two.
plane mirror
100cm/s
Critical Mass is that minimum amount of fissionable material needed to maintain a chain reaction
The minimum amount of energy needed is called the "activiation energy". It varries depending on factors such as your reaction, temperature and several others.
The minimum rays needed to form an image by a spherical mirror is two.
To answer this question, the mass of the spherical protein is needed. the fact that the protein is a sphere and that it has a density of 1gcm3 is not enough information to determine the diameter.
The materials needed to construct a shoe shelf would be like that of a cabinet. Materials such as plywood, screws, glue, and saws would be needed to properly construct a shelf.
Being able to construct a sentence helps.
a mirror
The minimum annual rainfall needed for agriculture field is 600 mm
It is made out of stones and wood.
jawn sack
Compass
They needed to construct the legs of the bridge.
light is needed to reflect an image off a mirror...no light no reflection
The minimum number of seismographs needed to locate an epicenter of an earthquake is 3.