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ryzh [129]
4 years ago
8

The flame in an operational Bunsen burner undergoes a

Physics
2 answers:
oksian1 [2.3K]4 years ago
6 0
<span> The flame in an operational Bunsen burner undergoes a
A. phase change
B. nuclear change
C. chemical change
D. physical change

Flames are a chemical change since you cannot separate the components physically once you've combined them so the answer is C. chemical change</span>
pshichka [43]4 years ago
3 0
Can you explain the question more?
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A current of 02kA is traveling through a circularly looped wire. The wire makes 35 turns around an induced magnetic field of 8 9
PIT_PIT [208]

Answer:

The radius of the loop is 4.94\times10^{5}\ m

Explanation:

Given that,

Current = 0.2kA = 200 A

Number of turns = 35

Magnetic field = 8.9 nT

We need to calculate the radius of one loop

Using formula of magnetic field

B=\dfrac{N\mu_{0}I}{2r}

r=\dfrac{N\mu_{0}I}{2B}

Where, I = current

N = number of turns

B = magnetic field

r = radius

Put the value into the formula

r=\dfrac{35\times4\pi\times10^{-7}\times200}{2\times8.9\times10^{-9}}

r =494183.11\ m

r=4.94\times10^{5}\ m

Hence, The radius of the loop is 4.94\times10^{5}\ m

3 0
3 years ago
The picture shows a device used to produce
lesya [120]
It would be wind energy
6 0
3 years ago
What causes the mechanical advantage of the inclined plane to be less than that of the lever? 30 points !!!
gayaneshka [121]
Moving an object up an inclined plane<span> requires </span>less<span>force </span>than<span> lifting it straight up, at a cost of an increase in the distance moved. The </span>mechanical advantage<span>of an </span>inclined plane<span>, the factor by which the force is reduced, is equal to the ratio of the length of the sloped surface to the height it spans.</span>
8 0
4 years ago
If two vectors are 7 cm and 5 cm .then what's the addition of these two?
wariber [46]

Answer:

7 + 5 = 12

7 + 5 = 12    

Explanation:

Since it asks for 2 vectors, you have to add 2 times.

8 0
3 years ago
Energy can be transferred from one _______ to another and one __________ to another. *
Dmitrij [34]

Answer:

Source, form

Explanation:

8 0
3 years ago
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