Calculate the average speed of the athlete over the 2nd lap to the nearest m/s.
Step 1 - Find value for t using information given.
ti = 1 minute, 5.23s = 65.23 s
t2 = 2 minutes, 12.86 s = 132.86 s
t = t2 - t1 =
S,
s = 400 m
Step 2 - write down the appropriate equation, substitute
the required values, and round to the nearest m/s to get
the average speed.
S = vt
= v x
m/s
V=

En un laboratorio, nakisha mezcla una solución de hidróxido de sodio con un indicador llamado fenolftaleína. cuando se combinan, crean una solución de color rosa. nakisha se pregunta si la mezcla de otras soluciones con fenolftaleína también creará este color rosa. ? cómo podría nakisha utilizar el proceso de investigación científica para determinar si la mezcla de otras soluciones con fenolftaleína también creará un color rosa? marque las que correspondan.

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