The table below shows the approximate distances of two stars from earth.

name of star approximate distance from earth (in light years)
proxima centauri 4
61 cygni 11
a scientist uses a telescope to observe the two stars. which of these is the best conclusion about the images of the two stars as seen by the scientist? (1 point)

Ascrew incorporates which other simple machine? lever wheel and axle inclined plane pulley

Which law represents the thermodynamic statement of the conservation of energy of a system? a. the fourth law b. the first law c. the second law d. the third law

(a) calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 10.0 g. silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b) imagine adding electrons to the pin until the negative charge has the very large value 1.00 mc. how many electrons are added for every 109 electrons already present