Round the decimal 0.334 to the underlined place<br><br> A. 1<br> B. 0<br> C. 0.3<br> D. 0.4

One mole of iron (6 × 1023 atoms) has a mass of 56 grams, and its density is 7.87 grams per cubic centimeter, so the center-to-c

MrMuchimi

Answer:

a) k $_{s}$ = 3.6 N/m ; b) 9.43 * 10¹²; c) 1.18 * 10¹¹; d) 75.08 N/m

Step-by-step explanation:

Length of iron bar = L = 2.7m;

side length of cross section = a = 0.07cm = 0.0007m;

x = 2.7 cm = 0.027m;

m = 100kg;

ρ = 7.87gm/cm³;

da = 2.28 * 10⁻¹⁰m;

a)

Fnet = F - mg

where Fnet = 0

So,

F = mg where F=k $_{s}$ x

k $_{s}$ = mg/x = 100*9.8/0.027

k $_{s}$ = 3.6 N/m

b)

Nchain = Aw/Aa =a²/(da)²

= (o.ooo7)²/(2.28 * 10⁻¹⁰)²

= 9.43 * 10¹²

c)

Nbond = L/da = 2.7/2.28 * 10⁻¹⁰

= 1.18 * 10¹¹

d)

Spring stiffness of wire = ksi = (Nbondk $_{s}$ )/Nchain

= [(1.18* 10¹¹)(6*10⁴)]/(9.43 * 10¹²)

= 75.08 N/m

8 0

3 years ago

What is the slop of the line represented by the equation y=-2/3-5x

jek_recluse [69]

The slope is -5x.

Explanation:

Rearrange the equation so it’s in y=mx+b format.

y=-5x-2/3

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timeless toys builds tricycles and wagons. the owner noticed that there are several diffrent ways that a customer could place an

slava [35]

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Read 2 more answers

6 high school seniors choose from among 20 quotes for their yearbook. What is the probability that at least 2 of them choose the

shusha [124]

Using the binomial distribution, it is found that there is a 0.0328 = 3.28% probability that at least 2 of them choose the same quote.

<h3>What is the binomial distribution formula?</h3>

The formula is:

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$