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Studentka2010 [4]
4 years ago
7

Which would be the most reliable source of information about the weather?

Physics
2 answers:
o-na [289]4 years ago
8 0

Answer:

C: The national weather service channel.

Explanation:

first, you can rule out A and B because they don't exactly provide exact information. D can be ruled out because it shows predicted weather while C, The national weather service channel, has 'round the clock info instead of predictions.

puteri [66]4 years ago
4 0
It is answer a a fishing magazine
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A lamp has a power of 120 w and is left on for 24 hours. A television has a power of 350 W and is left on for 3 hours. Which sta
soldi70 [24.7K]
<h2>Hello!</h2>

The answer is C. The television uses 6,588,000 J less than the lamp.

<h2>Why?</h2>

First, we must know that 1 Wh( Watt consumed in 1 hour) = 3600 J

Wh is the unit that express the energy amount of consumed in 60 minutes/ 1 hour.

So,

From the enunciate information we can calculate the energy consumed by the lamp and the television.

For the lamp, we have that it left on for 24 hours and it has a power of 120

For the television, we have that it left on for 3 hours and it has a power of 350W

Calculating the energy consumed (Wh) we have:

Wh= Watt*Time= 120 Watt* 24 hours= 2880 Wh

and converting it to Joule, we have:

2880 Wh*\frac{3600 J}{1 Wh}= 10,368,000 J

Doing the same for the television, we have:

Wh= 350 Watt* 3 hours= 1050 Wh

and converting it to Joule, we have:

1050 Wh*\frac{3600 J}{1 Wh}= 3,780,000 J

Finally, we have

10,368,000J(Lamp)-3,780,000J(Television)= 6,588,000J:

Then having calculated both consume, we have that the television uses 6,588,000 J less than the lamp.

3 0
3 years ago
Read 2 more answers
A polarized beam of intensity Io is directed into a device consisting of two polarizers. The beam is vertically polarized, and t
timama [110]

Answer:

Explanation:

The intensity of polarised light after polarization through angle θ

I = I₀ cos²θ

Here θ = 23 for first polariser

Intensity after first polarisation

= I₀ cos²23 = .846 I₀

For second polariser θ = 90 - 23 = 67 degree

Intensity after second polarisation

= .846 I₀ cos²67 =  .13 I₀ .

3 0
3 years ago
Help pls you don't have to answer all​
miskamm [114]

Answer:

5. The 2 features we need to harness the energy from tides are when tides come in and when tides come out.

6. Tidal energy is the most predictable type of renewable energy is because we know the exact locations of the sun and moon all year round.

6 0
4 years ago
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Select the statement that best describes how the forces relate. (2 points)
Anarel [89]
"D. Magnetic and electrical forces are similar because they are both related to the interactions between charged particles" best describes how the forces relate.
4 0
4 years ago
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It takes a ball 30 seconds to travel from point A to point B. What is the ball’s speed?
AlladinOne [14]
Direction from A to B divided by time(30s)
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