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coldgirl [10]
3 years ago
11

A 1.5m wire carries a 8A current when a potential difference of 67v is applied what is the resistance of the wire

Physics
1 answer:
Drupady [299]3 years ago
8 0

Data is inappropriate

  here, we need gauge of the wire i.e., diameter of the wire, so that we calculate the resistance by using the formula

                              R  = ρl/A            

            where R= resistance ; Ω

                       l = length of wire ; m

                       A = area of wire ; m²

                       ρ = resistivity ; Ω-m

But in general ohms law is

                    V = I R

                    R = V/I ;

but here we also calculate "R" from length of wire in which the current is flowing.

I hope it is helpful to you.

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Answer:

The difference is 7.6 grams.

Explanation:

In mathematics the difference of two numbers is express as the subtraction between them:

         

a-b

So to find out the difference between the two measured masses, a will be represented by 123.6 grams since is the bigger number, and b by 115.972 grams.

Therefore, it is get:

123.6grams-115.972grams = 7.6grams

<u>Hence, the difference is 7.6 grams. </u>

The result of 7.628 will be expressed as 7.6 to have the correct number of significant figures.          

 

Notice how that can be express in units of kilograms too since there is 1000 gram in 1 kilogram:

7.6grams . \frac{1Kg}{1000grams} ⇒ 7.6x10^{-3}Kg

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An astronaut lands on a new, recently discovered planet in a different star system. The astronaut measures the acceleration due
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Explanation:

We can use Newton's Law of Universal Gravitation:

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Let's look at Newton's 2nd Law:

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We can set these equations equal to each other:

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The mass of the second mass (astronaut) cancels out. We are left with:

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