Answer:8.3mins
Explanation:
S=Vt
where V=average speed
S=4000m V=8m/s
4000=8×t
t=4000/8
t=500s
t=500/60
t=8.3min
500 sec
8 min 20 sec
Explanation:Hi there !
8 m ................ 1 s
4000 m ........ x s
x = 4000m×1s/8m = 500 sec = 8 min 20 sec
Good luck !
What is the difference between a measurement and an observation?A. Measurements are made with tools; observations are not.B. Observations are biased, while measurements are always unbiased.C. Measurements are compared to a standard; observations are not.D. Observations are only indirect ways of gathering data.
Answer:
A. Measurements are made with tools; observations are not
Explanation:
Measurement: the assignment of numbers or codes according to prior-set rules.
Observation: data from an individual study subject or sampled unit.
Measurement error: differences between "true" answers and what appears on data collection instruments
hope this helps
plz mark brainleist