Answer:
1371.4watt
Explanation:
from power=energy/time
BUT energy=force times distance
B. We can see only one side of the Moon from Earth.
( we only see one side of the moon because the moon rotates around the Earth)
Answer:
t = 96.1 nm
Explanation:
For strong reflection through liquid layer we know that the path difference between two reflected light rays must be integral multiple of wavelength
now we know that the path difference of two reflected light from thin liquid layer is given as

here we know that

t = thickness of layer
N = 0 (for minimum thickness of layer)

now we have


If you apply a little bit of force, one will move easier than the other since it is lighter.
Answer:
1) D
2) A
Explanation:
1) Each group has the same number of valence electrons, which are the outer electrons.
2) Ionic bonds are between a metal and non - metal, the metal being sodium and the non - metal being chlorine.