If a traveler first drives 18.6 km east, then 30.3 km southeast, and finally 10.7 km south then the traveler's total displacement would be 51.30 kilometers.
An object's position changes if it moves in relation to a reference frame, such as when a passenger moves to the back of an airplane or a professor moves to the right in relation to a whiteboard. Displacement describes this shift in location.
As given in the problem If a traveler first drives 18.6 km east, then 30.3 km southeast, and finally 10.7 km south then we have to find the traveler's total displacement,
the total displacement in the east direction = 18.6 + 30.3Cos45°
the total displacement in the east direction = 40 km
the total displacement in the south direction = 10.7 + 30.3Cos45°
the total displacement in the south direction = 32.12 km
The net resultant displacement = √(40² + 32.12²)
The net resultant displacement = 51.30 kilometers
Thus, the traveler's total displacement comes out to be 51.30 kilometers.
Learn more about displacement here, refer to the link;
#SPJ2
B. 0 degrees.
C. 90 degrees.
D. 80 degrees.
Answer: The correct answer for the blank is-
B. sociocultural.
Sociocultural theory for learning was proposed by psychologist Lev Vygotsky. According to this, behavior of an individual can be influenced by his surrounding that includes caretakers, society, peers, and culture at large.
As per the information in this question, a team of psychologists is studying how negative feedback ( a reaction that leads to decrease in the function/ activity) affects self-esteem in different cultures.
Therefore, it indicates that the psychologists are working from the sociocultural perspective.
It magnifies light received from distant objects.
It measures the temperature of distant objects.
It measures the wavelengths of incoming light rays
Explanation :
Telescope is an instrument which is used to magnify distant objects bright, consistent and large.
The function of an ideal telescope must be :
There are many types of Telescope like:
Hence, the correct option is (b) " It magnifies light received from distant objects ".
thanks!