Answer:
D. By adding the vectors

Explanation:
Given
Represent the velocity of the river current as VR

Represent the velocity of the boat as VB

Required
How to calculate the velocity of boat relative to river current
From the question, we understand that both move in the same direction.
So, the relative velocity V is calculated as:



Notice that the both velocities are added together to get the relative velocities.
This is so because they both move in the same direction
<em>From the list of given options, only option D is correct.</em>
27.false
28.false
29.true
30.false
31.true
32.false
33.false
34.true
35.true
<u>Answer:</u>
The factors affecting the attention of an individual along with a temporary characteristics like time pressures or crowded stores are the ‘situational factors’.
<u>Explanation:</u>
- Most individuals who are frequent buyers of commodities choose spending less time on the selection of commodities.
- Such buyers prefer going with the stimuli that is provided by the packaging and the advertisement of the commodity.
- Moreover, such buyers are also intrigued by the crowd in the stores or the time pressure being experienced by them at the given moment.
Answer: Children serve as spies.
Explanation:
The party used the most vulnerable social group, children as spies. Specifically, children are most susceptible to indoctrination and are, therefore, the most susceptible group. From a young age, the party has tried to brainwash children as much as possible to be suspicious of everything and even their parents.