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2 years ago

The rounded atomic mass of K is _____ K stands for _ and has ___ valence electron(s).

Physics

2 answers:

Free_Kalibri [48]2 years ago

8 0

Answer:

The rounded atomic mass of K is

K stands for

Potassium

and has

valence electron(s).

netineya [11]2 years ago

4 0

Answer:

Potassium

k = Potassium

Potassium Has 19 Electrons

the atomic mass is 39.0983

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3.75 x 108 is 2000 hope that is right

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2 years ago

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Explanation:

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3 years ago

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It takes a minimum distance of 57.46 m to stop a car moving at 13.0 m/s by applying the brakes (without locking the wheels). Ass

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Answer:

The minimum stopping distance when the car is moving at

29.0 m/sec = 285.94 m

Explanation:

We know by equation of motion that,

$v^{2}=u^{2}+2\cdot a \cdot s$

Where, v= final velocity m/sec

u=initial velocity m/sec

a=Acceleration m/ $Sec^{2}$

s= Distance traveled before stop m

Case 1

u= 13 m/sec, v=0, s= 57.46 m, a=?

$0^{2} = 13^{2} + 2 \cdot a \cdot57.46$

a = -1.47 m/ $Sec^{2}$ (a is negative since final velocity is less then initial velocity)

Case 2

u=29 m/sec, v=0, s= ?, a=-1.47 m/ $Sec^{2}$ (since same friction force is applied)

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s = 285.94 m

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2 years ago

For the circuit shown in (Figure 1), find the potential difference between points a and b. Each resistor has

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The potential difference between points a and b is zero.

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The total emf in the circuit is the sum of all the emf in the circuit.

emf(total) = 1.5 + 1.5 = 3.0 V

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The potential difference between two points, a and b is calculated as follows;

V(ab) = Va - Vb

V(ab) = 1.5 - 1.5

V(ab) = 0

Thus, the potential difference between points a and b is zero.

Learn more about potential difference here: brainly.com/question/3406867

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2 years ago

Semi-trailer trucks have an odometer on one hub of a trailer wheel. The hub is weighted so that it does not rotate, but it conta

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Answer:

1020 km

Explanation:

A complete rotation of the wheel equals a distance of 1 circumference.

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$C = \pi d$

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3 years ago

The rounded atomic mass of K is _______ K stands for _____ and has _____ valence electron(s).

The rounded atomic mass of K is _____ K stands for _ and has ___ valence electron(s).