Answer:
binding energy is 99771 J/mol
Exlanation:
given data
threshold frequency = 2.50 × Hz
solution
we get here binding energy using threshold frequency of the metal that is express as
..................1
here E is the energy of electron per atom and h is plank constant i.e. and x is binding energy
and here N is the Avogadro constant =
so E will
E =
so put value in equation 1 we get
= 2.50 × ×
solve it we get
x = 99770.99
so binding energy is 99771 J/mol
Answer:
kinetic energy of 16 J. Determine the velocity of the first toy, and the mass of the ... distance of 12 cm into the tree. ... b) the average force exerted on the bullet while slowing down to a stop.
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At low wind speed, more blades will be better and the blades should be long and wide. The blade pitch should be large. At high wind speed, the blades should be short and thin. The blade pitch should be small then.
Answer:
aye son yall think if i keep answering these questions incorrectly.. they'll find out what im doing and take my li points back?
Explanation:
The correct answer is C. Electronegativity is the ability of an atom to attract electrons.
It is best illustrated as the tendency of an atom to draw a shared pair of electrons towards itself. It is affected by its atomic number and the distance of valence electrons reside from the charged nucleus.