Answer:
average speed = 18 miles / hour
Explanation:
Given data
drive = 396 miles
time = 8 am Tuesday to 5 pm Wednesday = 33 hours
lunch = 30 min Tuesday + 30 min Wednesday = 60 min = 1 hour
sleep = 7 pm Tuesday to 5 am Wednesday = 10 hours
to find out
average speed
solution
we know that he take total time = 33 hours and he took rest + luch = ( 1 + 10 hours)
so total travel time is = 33 - 11 = 22 hours
so
average speed = distance / time
average speed = 396 / 22
average speed = 18 miles / hour
position 2
i know cause i already learned this
Answer:
v = 1.224 m/s
Explanation:
given,
distance between the two successive maxima = 1.70 m
number of crest = 8
time = 11 s
frequency is equal to number of cycle per secod
velocity of wave
v = f x λ
v = 0.72 x 1.70
v = 1.224 m/s
Hence, the wave speed is equal to v = 1.224 m/s