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4 years ago

Electrons are important to electric current because they are able to

1 answer:

4 0

Electrons are important to the electric current because they are able to move from one atom to another. When an atom loses an electron, it becomes positively charged and when an atom gains an electron, it becomes negatively charged.

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A circuit has a voltage drop of 60.0 V across a 120.0 resistor that carries a current of 0.500 A. What is the power conducted by

olasank [31]

Answer:

Power, P = 30 W

Explanation:

We have,

Voltage drop of a circuit is 60 V

Resistance of the resistor is 120 ohms

Current across the circuit is 0.5 A

It is required to find the power conducted by the resistor. Power conducted by a resistor is given by :

$P=VI$

V and I are voltage and current

$P=60\times 0.5\\\\P=30\ W$

So, the power conducted by the resistor is 30 watts.

3 0

3 years ago

A potential energy function is given by U(x)=(3.00J)x+(1.00J/m^2)x^3. What is the force function F(x) (in newtons) that is assoc

snow_lady [41]

Answer:

$F(x)=-3 N -(3N/m^2) x^2$

Explanation:

The force is equal to the negative of the derivative of the potential energy function:

$F=-\frac{dU}{dx}$

In this problem, the potential energy function is

$U(x)=3 x + 1 x^3$

Therefore, the force function is:

$F(x)=-\frac{dU}{dx}=-\frac{d}{dx}(3x+1x^3)=-3-3x^2$

So, adding the units of measurement,

$F(x)=-3 N -(3N/m^2) x^2$

4 0

4 years ago

Does the universe need explaining or can it just 'be' there?

Naddik [55]

Recently, We've been discussing this specific topic in my RS class. So, there are many theories to explain the existence of the world such as the Big Bang, Evolution or the Creation story.

Although these are three different ideas, they can still be related or interconnected with one another in some way. For example, George Lemaintre's Big Bang explanation can be linked with the Creation story in ways such as God being present at the Big Bang or even God being the one to allow the Big Bang occur.

Furthermore, God might have created us as apes or monkeys then we evolved to become humans.

In conclusion, the universe couldn't have come to pass just like that, they're must be Scientific or Theological truths to back this up. The only thing is that people have their unique beliefs, according to their religion, culture and childhood background.

4 0

3 years ago

The frequency of the applied RF signal used to excite spins is directly proportional to the magnitude of the static magnetic fie

telo118 [61]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The uncertainty in inverse frequency is $\Delta [\frac{1}{w} ]= \frac{3}{2000} \ s$