Potassium is the 19th element so it is B
Answer:
K = m g (A - A2)
Explanation:
In a block spring system the total energy is the sum of the potential energy plus the kinetic energy, for maximum elongation all the energy is potential
Em = U₀ = m g A
For when the system is at an ele
Elongation A2 less than A, energy has two parts
Em = K + U₂
K = Em –U₂
We substitute
K = m g A - m gA2
K = m g (A - A2)
That's the Photoelectric effect. Einstein won his (only) Nobel Prize for his explanation of the Photoelectric Effect, published in 1907.
Answer:
Water would still be used in industrial manufacture of Hydrogen,by electrolysis
Also would still be used in photosynthesis by making hydrogen ion and free electrons also oxygen by photolysis process
Answer:
kinetic energy is half of the negative of potential energy.
Explanation:
The potential energy is the double of the negative of kinetic energy.
