Answer:
y
Explanation:
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The speed stops as it hits the girls hand but speed reduces as it reaches her hand and increases at the beginning of the movement
Answer:
19 cm
Explanation:
The total distance is 9+4+6 = 19 cm
However, the DISPLACEMENT is -9+4-6 = -11 cm.
Answer:
Available options are;
A. validity; high
B. variability; low
C. reliability; low
D. reactivity; high
Answer is C. reliability; low
Explanation:
Normal body temperature is considered to be 37°C (98.6°F); however, a wide variation is seen. Among normal individuals, mean daily temperature can differ by 0.5°C (0.9°F), and daily variations can be as much as 0.25 to 0.5°C. So we can see that the 98 to 106 to 89 degrees shows that the thermometer is not reliable.