Answer:
I would prefer firewood since it is long lasting but then it is bulky one of its disadvantage
Answer:
when infectious agents get into the human body your body responds by raising the core body temperature causing a fever
Answer:
um Im not sure what the heck that is
Answer:
The longest wavelength is 2.19 × 10⁻⁷ m.
Explanation:
The work function (ф) is the minimum energy required to remove an electron from the surface of a metal. The minimum frequency required in a radiation to submit such energy can be calculated with the following expression.
ф = h × ν
where,
h is the Planck's constant (6.63 × 10⁻³⁴ J.s)
ν is the threshold frequency for the metal
In this case,
We can find the wavelength associated to this frequency using the following expression.
c = λ × ν
where,
c is the speed of light (3.00 × 10⁸ m/s)
λ is the wavelength
Then,
In general, ionic compounds have the highest melting and boiling points. Polar covalent compounds have lower melting and boiling points than ionic compounds but higher melting and boiling points than nonpolar compounds.