<span>the boat travels 20m in 18 sec. it has an average velocity of 20/18 m/s = 1.111m/s.</span>
Answer:
weave lanes
Explanation:
Road engineers have to be especially creative when they must design an infrastructure that allows several major roads to cross, with the aim of improving traffic flow making optimal use of space.
The partial cloverleaf: With a very popular design usually widely used in places where interstate highways meet state and / or local roads. Usually you include interlaced lines (or weaves lanes) that allow adequate traffic circulation both to enter and exit to the main road.
Answer:
Time, t = 0.104 seconds
Explanation:
Frequency of the click of the Dolphin, f = 55.3 kHz
A dolphin sends out a series of clicks that are reflected back from the bottom of the ocean 80 m below, d = 80 m
The speed of sound in seawater is, v = 1530 m/s
Once the sound is send and reflects, the total distance covered by it is 2d such that,
So, the time elapses before the dolphin hears the echoes of the clicks is 0.104 seconds.
Answer:
Time taken to reach the tree
they have given the maximum height which is 25m
therefore...
v=u+at (upward)
0 = 45sin(20)-9.81t
t = 1.56s
Kevin is in the Bargaining stage it makes who ever is in this stage say if only and what ifs a lot