Answer:

Step-by-step explanation:
you have that the average sped is given by the following formula:

The uncertainty formula for a division is given by:
(1)
Δv: uncertainty in speed
Δx: uncertainty in the distance = 0.9m
Δt: uncertainty in time = 0.7s
x: distance = 8.1m
t: time = 1.7s
You replace the values of all parameters in the equation (1):

Hence, the relation between the uncertainty in the average velocity is 0.426
Answer:
The answer is <u>-37</u>.
Step-by-step explanation:
1) Simplify 50-2 to 48.
48 ÷ 4 - 
2) Simplify
to 49.
48 ÷ 4 - 49
3) Simplify 48 ÷ 4 to 12.

4) Simplify.

<u>Therefor, the answer is </u><u>Option C) -37</u><u>.</u>
Answer:
22
Step-by-step explanation:
Answer:6 x 30 =18 x ex
180= 18 ex
ex =180/18
number of days = 10
Step-by-step explanation:
If a student runs 4K in 1/2 hours, then he would run 8k In 1 hour, so,
8km/h