Answer:
This is green light
Explanation:
According to the photoelectric effect, the maximum kinetic energy of an photoelectron is given by:
Here, E is the energy of the photon and W is the minimum energy required to remove an electron from the surface of the metal, W is defined as:
The Planck – Einstein relation states that the energy of a photon is equal to its frequency multiplied by the planck constant:
Recall that . Replacing (3) and (2) in (1):
Solving for :
This is green light
The surface of the bottom of the ship is wider so its more boyant to float. A nail is small so it'll sink.
That's at the highest point of the swing... whether it's in front or in the back ...
at the instant when you stop going up and start coming down.
The answer is B.) hope this helps
Answer:
gravity is the invisible force that attracts us the the earth\
1.normal force 2.frictional force 3. spring forces
flowing electrons produce a magnetic field
unbalanced forces are not equal they always cause changes in the moving object like the direction . balanced forces are equal and cause no changes
The SI system, also called the metric system, is used around the world. There are seven basic units in the SI system the meter kilogram second (s), kelvin the ampere , the mole and the candela.