The table below shows the pH of four body fluids and the resulting color when each is tested with Red and Blue Litmus Paper. Body fluid

pH

Red litmus

Blue litmus

Blood

7.4

Turns blue

No change

Bile

8.2

Turns blue

No change

saliva

6.8

No change

Turns red

Gastric fluid (in stomach)

1.7

No change

Turns red

According to the data, what kind of substance is gastric fluid?

A.
It is a weak acid since the blue litmus paper turns red and the pH is 1.7

B.
It is a strong base since the blue litmus paper turns red and the pH is 1.7

C.
It is a weak base since the blue litmus paper turns red and the pH is 1.7

D.
It is a strong acid since the blue litmus paper turns red and the pH is 1.7

How many dots must be added to the symbol to properly represent a standard nitrogen ion? a) 1 b) 3 c) 5 d) 8

1134567 a jet with mass m = 1.1 ă— 105 kg jet accelerates down the runway for takeoff at 2 m/s2. 1) what is the net horizontal force on the airplane as it accelerates for takeoff? 2.2*10^5 n your submissions: 2.2*10^5 computed value: 220000submitted: saturday, january 26 at 2: 41 pm feedback: correct! 2) what is the net vertical force on the airplane as it accelerates for takeoff? 0 n your submissions: 0 computed value: 0submitted: saturday, january 26 at 2: 41 pm feedback: correct! 3) once off the ground, the plane climbs upward for 20 seconds. during this time, the vertical speed increases from zero to 21 m/s, while the horizontal speed increases from 80 m/s to 95 m/s. what is the net horizontal force on the airplane as it climbs upward? n 4) what is the net vertical force on the airplane as it climbs upward? n 5) after reaching cruising altitude, the plane levels off, keeping the horizontal speed constant, but smoothly reducing the vertical speed to zero, in 13 seconds. what is the net horizontal force on the airplane as it levels off? n 6) what is the net vertical force on the airplane as it levels off?

Which one of the following research methods can show cause and effect