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Gnom [1K]
4 years ago
13

The sun emits radiation in which wavelengths?

Physics
2 answers:
viktelen [127]4 years ago
8 0

longer than those emitted by the sun

ra1l [238]4 years ago
5 0
<h2>Answer:</h2>

The sun emits radiation in wavelengths of 10nm to 1mm.

<h3>Explanation:</h3>

The sun emits radiations of different types in electromagnetic spectrum.

99% of radiations are :

  • Visible light:   400nm to 700nm
  • Ultraviolet rays:  10nm to 400nm
  • Infrared rays:  700nm to 1mm

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If a 140 lb. climber saved her potential energy as she descended from Mt. Everest (Elev. 29,029 ft) to Kathmandu (Elev. 4,600 ft
mamaluj [8]

Answer: 3217.79 hours.

Explanation:

Given, A 140 lb. climber saved her potential energy as she descended from Mt. Everest (Elev. 29,029 ft) to Kathmandu (Elev. 4,600 ft).

Power = 0.4 watt

Mass of climber = 140 lb

= 140 x 0.4535 kg  [∵ 1 lb= 0.4535 kg]

⇒ Mass of climber (m) = 63.50 kg

Let h_1=29,029\ ft= 8848.04\ m\ \ \ \  [ 1 ft=0.3048\ m ] and h_2= 4,600 ft = 1402.08\ m

Now, Energy saved =mg(h_1-h_2)=(63.50)(9.8)(8848.04-1402.08)=4633620.91\ J

\text{Power}=\dfrac{\text{energy}}{\text{time}}\\\\\Rightarrow 0.4=\dfrac{4633620.91}{\text{time}}\\\\\Rightarrow\ \text{time}=\dfrac{4633620.91}{0.4}\approx11584052.28\text{ seconds}\\\\=\dfrac{11584052.28}{3600}\text{ hours}\ \ \ [\text{1 hour = 3600 seconds}]\\\\=3217.79\text{ hours}

Hence, she can power her 0.4 watt flashlight for 3217.79 hours.

5 0
4 years ago
When low on gasoline, is it better to increase or decrease the speed of the vehicle? Explain.
sergiy2304 [10]
Yeah!! It is better to decrease the speed of the vehicle so the ejection of gases would happen in slow manner.... then you can save your gasoline
5 0
3 years ago
On topographic maps, contour lines that are farther apart indicate what ?
gladu [14]

Answer:

if I am correct, they indicate less steep terrain. think of it as the steeper the terrain the closer together the lines would be. hope that makes sense for you guys.

4 0
3 years ago
A 12 kg<br> mass is lifted to a height of 2 m. What is its potential energy<br> at this position?
Romashka-Z-Leto [24]

Answer:

Explanation:

Potential energy is the energy stored within an object, due to the object's position, arrangement or state

4 0
3 years ago
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What is the unit of velocity ratio and mechanical advantage and why​
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4 years ago
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