1. Multibeam sonar is used to: a. create a high resolution map of the seafloor b. identify the texture of the atmosphere c. create a high resolution map of the sea surface d. identify the texture of the sea surface e. none of the above

An Multibeam sonar is an instrument for measuring the seabed. Basically it is in charge through waves, to obtain a mapping of the seabed. Its operation is based on the emission of sound probes in the directions of its capacity, generally this could be described as: Sending fan-shaped probes. It is located under the boat and perform the emission of probes waiting for its return. The calculations are made based on said return and a receiver is in charge of processing the time they arrive to determine the depth of the water. With the current technology with a single sending of signals, the extraction of the information is generated, producing readings of a single sending or a single ping.

Therefore the correct answer is A. Create a high resolution map of the seafloor.

it would be kevlar ^^

the minimum constant speed at which she can catch the train is 2.7 m/s

given:

acceleration = 0.6

time = 4.5 s

to find:

velocity = ?

formula used:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

solution:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

v = 0 + (0.6 × 4.5)

v = 2.7 m/s

the minimum constant speed at which she can catch the train is 2.7 m/s