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Harman [31]
3 years ago
7

What is the name of the place value of 9 in 199

Mathematics
2 answers:
Sliva [168]3 years ago
8 0

The name of place value of 9 in 199 is ones.

The second 9 has a value of tens.

The number 1 has a place value of hundreds.

coldgirl [10]3 years ago
6 0

The middle number value is Ten the one to the right of it value is One

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What happens to the force between two charged objects when you triple the magnitude of both charges?
Vika [28.1K]

If the force between two charged objects when you triple the magnitude of both charges. The Force will become 9 times the initial force.

<h3>What is coulombs law?</h3>

According to coulombs law force between two charges is given by  

F = \dfrac{1}{4\pi \epsilon }\dfrac{Qq}{r^2}

Here, R is the distance between both the charges Q and q.

Let the force on the charges be F1

The distance of separation = r

The magnitudes of the charges q1 and q2

K = Coulumb's constant

F = \dfrac{1}{4\pi \epsilon }\dfrac{Qq}{r^2}

Let the force on the charges be F

The distance of separation = r

The magnitudes of the charges 3q1 and 3q2

K = Coulumb's constant

So,

F = \dfrac{1}{4\pi \epsilon }\dfrac{Qq}{r^2}

F = \dfrac{1}{4\pi \epsilon }\dfrac{3Q\times 3q}{r^2}\\\\F = \dfrac{1}{4\pi \epsilon }\dfrac{9Qq}{r^2}\\\\F =9  \dfrac{1}{4\pi \epsilon }\dfrac{Qq}{r^2}\\\\F = 9F_1

Learn more about coulombs law;

brainly.com/question/13106909

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2 years ago
Write an expression using only multiplication and subtraction so that it's value is 25
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5x6-5<-------

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there you go (The first expression is the answer-hope it helps!)
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Answer:

A: False

B: False

C: True

D: True

E: False

F: True

G: True

H: True

Step-by-step explanation:

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9x - 18 = 9x + 2 FALSE

B: 65 - y = y - 65

(equation rearranged) -y + 65 = y - 65 FALSE

C: g (times) h = h (times) g     (TRUE due to the commutative property of multiplication)

D: a (times) 0 = 0      (TRUE because anything times 0 equals 0)

E: (4 (times) 2) - r = 4 (2 (times) r)

8 - r =  8 - 4r FALSE

F: k + 0 = k TRUE

G: (a + x) + y = a + (x + y)

a + x + y = a + x + y TRUE

H: 5(2x - 9) = 10x - 45

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