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Veseljchak [2.6K]

3 years ago

9

Why would the discovery of a fossil imply that earth is much older than originally though ?

1 answer:

pentagon [3]3 years ago

6 0

because they have been there long enough to become a fossil.

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How does earth's magnetic field behave through long periods of geologic time?

I am Lyosha [343]

It Irregularly Reverses. I got the answer right on the test.

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Which word means "to get away from something"? <br> a become b dream c escape d practice

klemol [59]

The correct answer is - c. escape.

The word ''escape'' means to get away from something. This word can be used for multiple different situations, and it can refer to both physical and psychological matters.

In a physical sense it can be used to escape from certain unpleasant, or dangerous situation. Example: I have to escape from this prison.

In a psychological sense it can be used to escape, move away, from a certain state of mind. Example: I have to find an escape from my depressive thoughts.

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2 years ago

Starting from zero, an electric current is established in a circuit made of a battery of emf E, a resistor of resistance R and a

igor_vitrenko [27]

Answer:

time constant will decrease and steady state current will decrease on increasing the resistance

Explanation:

As we know that the EMF of cell is E which is used to connected across a resistor and an inductor.

So we will have

$E - iR - L\frac{di}{dt} = 0$

here we know that

$i = \frac{E}{R}(1 - e^{-Rt/L})$

now here we have

$\tau = \frac{L}{R}$

so if we increase the value of resistance of the wire then the time constant will decrease

and hence it will take less time to reach near the steady state value

also the steady state current will be smaller in that case

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2 years ago

Calculate the watts of power expended when a force 400 N travels 12 meters over 10 seconds.

Pachacha [2.7K]

Answer:

Explanation:

Example

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2 years ago

Struggling on this, really need help

Bad White [126]

Answer:

Guessing you just need help with the definition but if it's the question I can still help you.

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