Answer:
Explanation:
If we have an initial amount of a radioactive material or substance, which is , and we also are told this amount decays each year, this means each year of the substance remains:
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<u>To understand it better:</u>
Year 1:
Year 2:
Year 3:
and so on until year :
Year t:
Therefore, the function tha best describes this radiation decay situation is:
The statement that describes the energy changes associated with evaporation and boiling is that atoms gain energy during evaporation and boiling.
<h3>What is evaporation?</h3>
Evaporation is defined as process by which a solution changes from its liquid state to gaseous state.
Boiling is defined as the heating of water to a point that the vapor pressure is equal to the pressure of the gas above it.
In both phase transition stages, the molecules gain enough energy to change its state to another state.
Learn more about boiling here:
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Answer:
There are 193 member states. The UN recognises 206 states altogether.
Explanation:
Answer:
Newton's first law
Explanation:
Newton's first law of motion says, that an object will stay in its current motion, unless if a force acts upon it.
So an object already at rest, will stay at rest. And the ball rolling will keep rolling, if no other force such as friction slows it down.
Answer:
Chloroplasts convert light energy into sugars that can be used by the cells. This conversion creates 'food' for the plant.
Explanation: