How many times do you need to divide by ten to get from 5947.7 to 5.9477 ?

2 answers:

6 0

Answer would be 4 times

so if u count from behind 7 to where the decimal point is it would be 4

brainliewst and thanks plz

lions [1.4K]3 years ago

5 0

Three times. The decimal place is moved according if it's division (to the left) or multiplication (to the right) and how many zeros the ten has.

Example

5.9477 × 10 to the third power = 5947.7
5.9477 ÷ 10 = .59477

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Compute the loss of head and pressure drop in 200 ft of horizontal 6-in diameter asphalted cast iron pipe carrying water with a

laiz [17]

Answer:

The answer is below

Step-by-step explanation:

12 inches = 1 ft.

6 inches = 6 inches * (1 ft./12 inches) = 0.5 ft.

Therefore the diameter of the cast iron (D) = 6 inches = 0.5 ft.

The area of cast iron (A) = πD²/4 = π(0.5)²/4 = 0.196 ft²

The velocity (V) = 6 ft./s, the acceleration due to gravity (g) = 32.2 ft./s²

ε/D = 0.0004 ft./ 0.5 ft. = 0.0008

Using the moody chart, find the line ε/D = 0.0008 and determine the point of intersection with the vertical line R = 2.7 * 10⁵. Hence we get f = 0.02.

The head loss (h) is:

$h_f=f*\frac{L}{d}* \frac{V^2}{2g}=0.02*\frac{200\ ft}{0.5\ ft} *\frac{(6\ ft/s)^2}{2*32.2\ ft/s^2}=4.5\ ft$