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Mamont248 [21]
3 years ago
15

A current carrying wire is surrounded by a magnetic field. True or false

Physics
1 answer:
Aleks04 [339]3 years ago
7 0
The answer is true because A current carrying wire is surrounded by magnetic field
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Describe how the intensity of light changes with distance from a light source.
lions [1.4K]

Answer:

decreases

Explanation:

The intensity of light is inversely proportional to the square of distance between the source and the observation point.

Intensity \propto \frac{1}{distance^{2}}

So, as the distance increases by the factor of 2, then intensity becomes one fourth.

As the distance becomes half, the intensity becomes four times,

6 0
3 years ago
Which amount of power is the smallest?
Zinaida [17]
<span>D is the correct answer. A watt is the smallest amount of power. The prefix kilo means a thousand, mega means a million and giga means a billion, so, in increasing size: watt - kilowatt - megawatt - gigawatt.</span>
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3 years ago
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Refer to the following diagram to answer this question
svetoff [14.1K]
In this case, the resistance for the diagram shown in the figure is located at point D. The symbol that best represents a resistance in an RLC diagram is one that is similar to that of point D.
 Also, remember that by definition V = I * R.
 The answer is D.
7 0
3 years ago
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An increase in the transparency of earths atmosphere is often caused by
makkiz [27]
I believe your answer is a decrease in cloud cover.
8 0
3 years ago
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After you pick up a spare, your bowling ball rolls without slipping back toward the ball rack with a linear speed of vi=2.62 m/s
Misha Larkins [42]

Answer:

vf = 4.01 m/s

Explanation:

According to the law of conservation of energy:

Kinetic\ Energy\ Lost\ by\ Ball = Potential\ Energy\ Gained\ by\ the\ Ball \\\frac{1}{2}m(v_f^2-v_i^2) = mgh\\\\ v_f^2-v_i^2 = 2gh\\v_f^2 = 2gh + v_i^2\\

where,

vf = final speed of ball at top of the ramp = ?

vi = initial speed of ball = 2.62 m/s

g = acceleration due to gravity = 9.81 m/s²

h = height = 0.47 m

Therefore,

v_f^2 = (2)(9.81\ m/s^2)(0.47\ m)+(2.62\ m/s)^2\\v_f = \sqrt{9.2214\ m^2/s^2+6.8644\ m^2/s^2}\\

<u>vf = 4.01 m/s</u>

5 0
3 years ago
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