What is the difference between a reflected and a diffracted sound wave? A diffracted sound wave bounces back to the place of origin. A reflected sound wave is absorbed as it passes through an opening
B
A diffracted sound wave bounces back to the place of origin. A reflected sound wave changes direction as it passes through an opening
С
A reflected sound wave is absorbed by the medium A diffracted sound wave changes direction as it passes through an opening.
D
A reflected sound wave bounces back to the place of origin. A diffracted sound wave changes direction as it passes through an opening
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linda: 3 ; laura: 15

step-by-step explanation:

note that linda + laura's age is 18, and that linda is 12 years younger than her sister.

let "linda" = x , "laura" = y:

x + y = 18

x = y - 12

first, plug in y - 12 for x in the first equation:

(y - 12) + y = 18

simplify.

2y - 12 = 18

isolate the variable (y). note the equal sign, what you do to one side, you do to the other. do the opposite of pemdas. first add, then divide.

2y - 12 (+12) = 18 (+12)

2y = 18 + 12

2y = 30

(2y)/2 = (30)/2

y = 30/2

y = 15

next, plug in 15 for y in the second equation (the other equation would work too).

x = y - 12

x = (15) - 12

x = 3

linda's age is 3, laura's age is 15.

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the answer for sodium is 0.186

the answer for rubidium is 0.251

smooth muscle is composed of involuntary muscles found within the walls of organs and structures such as the esophagus, stomach, intestines, and blood vessels. those muscles push materials like food or blood through organs. unlike skeletal muscle, smooth muscle can never be under your control.