The properties of some rare earth elements make them essential ingredients in electronics. Rare earth elements appear together i
n the same general area of the periodic table of the elements. The graph shows two properties of several rare earth elements.
Is it accurate to say that the rare earth elements, as a group, share the same properties? Support your answer using the information in the graph.
Is it accurate to say that the rare earth elements, as a group, share the same properties? Support your answer using the information in the graph.
2 answers:
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Answer:
The current is reduced to half of its original value.
Explanation:
- Assuming we can apply Ohm's Law to the circuit, as the internal resistance and the load resistor are in series, we can find the current I₁ as follows:
- where Rint = r and RL = r
- Replacing these values in I₁, we have:
- When the battery ages, if the internal resistance triples, the new current can be found using Ohm's Law again:
- We can find the relationship between I₂, and I₁, dividing both sides, as follows:
- The current when the internal resistance triples, is half of the original value, when the internal resistance was r, equal to the resistance of the load.
Answer:
Explanation:
From the exercise we have that
<em><u>To find how far from the edge of the piano does the cat strike the floor, we need to calculate its time first </u></em>
At the end of the motion y=0m
Solving for t
or
Since the <u>time</u> can't be negative the answer is t=0.73
Knowing that we can calculate how far does the cat strike the floor