<span>A former “supercontinent” on the Earth. In the distant past a large landmass, Pangaea, included all the present continents, which broke up and drifted apart. :)</span>
To calculate the speed of the water leaving we use the formula,
Here h is the height of the water above the hole and g is the acceleration due to gravity.
Given,
Substituting the given value in above formula we get
Thus, water flow from a hole at the speed is 10.7 m/s
Answer:
A hypothesis is an idea or explanation that you then test through study and experimentation.
Answer:
(507 nm)
Explanation:
First of all let's calculate the energy of the photon absorbed by the electron, This is given by
where
h is the Planck constant
is the frequency of the photon
Substituting,
The energy of the second photon, the one emitted when the electron drops to the intermediate energy level, is 2/3 of this energy:
The relationship between the energy of the photon and its wavelength is
where c is the speed of light. Solving for , we find the wavelength:
it would be c hope it helps