Answer:
Volcanic ash helps scientists to determine the age of a rock sequence by using the process of RADIOMETRIC DATING
Explanation:
When scientist want to determine the age of a rock sequence, they try to find it they is a volcanic ash present. This volcanic ash tend to contains radio isotopes or radioactive elements that can be used to determine the age of the rock sequence. This process is called a Radiometric dating.
Radiometric dating can be defined as the process of dating rocks or other materials based or the known rate of decay of radioactive isotopes.
Radiometric dating has to involve parent and daughter radioactive isotopes therefore the following must be observed before carrying out radiometric dating.
a. The half life of the Parent radioactive isotopes must be known
b. The daughter radioactive isotopes must be available in substantial amounts and it must be differentiated from the parent radioactive isotopes
c. The parent radioactive isotope must have a longer half-life present in the volcanic ash as at the time of radiometric dating.
If the spaceship's Physicist happens to be hanging out of one side
of the ship, and he measures the speed of the photons as they pass
him and leave the ship, he'll see them passing him at 'c' ... the speed
of light.
When those photons pass somebody who happens to be in their
path, and he decides to measure their speed, he'll see them move
past him at 'c' ... the speed of light.
It doesn't matter whether the observer who measures them is
moving, or at what speed.
And it doesn't matter what source the photons come from, or
whether the source is moving, or at what speed.
And it doesn't matter what the photons' wavelength/frequency is ...
anything from radio to gamma rays.
The photons pass everybody at 'c' ... the speed of light.
Yes, I hear you. That can't be true. It's crazy.
Maybe it's crazy, but it's true.
Explanation:
The Zeroth Law of Thermodynamics states that if two bodies are each in ... to heat, there will be no transfer of heat from one to the other.
Answer:
There is a single pathway for charge flow in the circuit.
Explanation: