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adelina 88 [10]
3 years ago
11

A wire 48 m long carries a current of 18 A from west to east.

Mathematics
1 answer:
Arisa [49]3 years ago
4 0

Step-by-step explanation:

Given that,

The length of a wire, L = 48 m

Current in the wire, I = 18 A (west to east)

The magnetic field in the wire, B = 8.3\times 10^4\ T (towards south)

The magnetic force acting on the wire is given by :

F=I(L\times B)\\\\F=48\cdot18\cdot8.3\cdot10^{-4}\ N\\\\F=0.71\ N

Using right hand rule, the direction of magnetic force is upwards.

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Answer:

A. (\frac{1}{2})² = \frac{1}{2} × \frac{1}{2} = \frac{1}{4}

Step-by-step explanation:

Answer choice (A) is the counterexample because squaring number \frac{1}{2} results into number \frac{1}{4} which is less than \frac{1}{2} .

7 0
3 years ago
I need help im not understanding how to do this
galina1969 [7]

Answer:

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Since the slope-intercept form of a line is given by the expression:

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Then, for the function:

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7 0
1 year ago
In a garden club, 90% i ladie. The number of ladie i 12 more than 3 time the number of gentlemen. How many ladie and how many ge
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In the garden club there are 18 ladies and 2 gentlemen.

Given, In a garden club, 90% is ladies.

The number of ladies is 12 more than 3 times the number of gentlemen.

Let the total members be, x

the number of ladies be, l and the number of gentlemen be, g

according to the question,

l = 90x/100

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also, l = 12 + 3g

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as, l + g = x

9x/10 + (9x/10 - 12)/3 = x

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so, ladies be, l = 9x/10 = 18

and gentlemen be, g = 20 - 18 = 2

Hence, in the garden club there are 18 ladies and 2 gentlemen.

Learn more about Linear Equations here brainly.com/question/25869125

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The answer for the question is option 2
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