By using the equation speed = distance/time we can solve for distance. The speed is 4 m/s and the time is 12 seconds. We need to rearrange the equation to Speed * Time = distance. 4(12) = 48; 48 = distance. The cliff is 48 meters high.
Seal the roof and remove the moisture. Mold cannot survive in a dry environment so this will help remove it in an ecologically fiend way.
Pounds I believe? if not then I recommend google :)
Answer:
1, their atoms have the same number of valence electron. because valence electron determine the group of elements.
The energy carried by a photon is equal to
(Planck's Konstant) times (the frequency of the photon) .
Planck's konstant is 6.626 x 10⁻³⁴ m²-kg/s (rounded)