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Montano1993 [528]
3 years ago
8

Can somebody help meeeee...?​

Physics
1 answer:
Luba_88 [7]3 years ago
7 0

Answer:

{ \boxed{ \rm{pressure =   \frac{weight}{area} }}} \\  \\ { \rm{pressure =  \frac{200}{2} }} \\  \\ { \underline{ \underline{ \rm{ \:  \: pressure = 100 \: pascals \:  \: }}}}

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The efficiency of a light source is the percentage of its energy input that gets radiated as visible light. if some of the blue
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The efficiency of a light source is the percentage of its energy input that gets radiated as visible light if some of the blue light in an led is used to cause a fluorescent material to glow the overall efficiency of the LED decreases.

How efficient is LED?

Different wavelengths that correlate to different visible colours are used in LED light therapy. Various shades pierce the skin at different rates.

  1. Your skin's outermost layer is impacted by blue light.
  2. Yellow light is more enveloping.
  3. Red light penetrates your skin more deeply.
  4. The deepest penetrating light is near-infrared.

Different LED hues have various effects. For instance, according to experts red LED light therapy has the potential to reduce inflammation and boost collagen formation, which declines with age and is crucial for maintaining youthful-looking skin.

Acne-causing bacteria may be destroyed by a blue LED light therapy (P. acnes).

Hence the answer is the overall efficiency of the LED decreases.

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Does the image above correctly illustrate how the coriolis effect impacts global winds?
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3 years ago
For the circuit shown in (Figure 1), find the potential difference between points a and b. Each resistor has
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The potential difference between points a and b is zero.

<h3>Total emf of the series circuit</h3>

The total emf in the circuit is the sum of all the emf in the circuit.

emf(total) = 1.5 + 1.5 = 3.0 V

<h3>Potential difference</h3>

The potential difference between two points, a and b is calculated as follows;

V(ab) = Va - Vb

V(ab) = 1.5 - 1.5

V(ab) = 0

Thus, the potential difference between points a and b is zero.

Learn more about potential difference here: brainly.com/question/3406867

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