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>
The president must be a natural-born citizen of the United States, be at least 35 years old, and have been a resident of the United States for 14 years.
Answer: stimulus generalization.
Explanation:
Stimulus generalization can happen in classical conditioning as well as in operant conditioning. When it´s in operant conditioning, stimulus generalization describes the way people learn something in a specific situation and then can apply it to different but similar circumstances.
In this example, Jessi first learned at preschool that to get a snack she has to wash her hands. Instead of having to relearn this practice at home, she applied the same rule she had already learned.
America was the only major industrial nation that was not devastated by war. The economy benefited from an expanding internal market and heavy investment in research and development
Answer:
At the start of the war the land and sea forces used the aircraft put at their disposal primarily for reconnaissance, and air fighting began as the exchange of shots from small arms between enemy airmen meeting one another in the course of reconnoitering. Fighter aircraft armed with machine guns, however, made their appearance in 1915. Tactical bombing and the bombing of enemy air bases were also gradually introduced at this time. Contact patrolling, with aircraft giving immediate support to infantry, was developed in 1916.
Explanation:
