Answer:
Option C
Explanation:
As we know that when we have to subtract a vector from another vector then the resultant of two vectors is same as we add the reverse of the vector into the first vector.
so here we need to add reverse of vector B into vector A
since here we have to find the resultant of the difference of two vectors so we will first reverse the direction of 2nd vector given here and then add it into the first vector.
So here as per the figure given below correct answer is option C
Answer:
a)
b)
c)
Explanation:
From the question we are told that
Distance to Betelgeuse
Mass of Rocket
Total Time in years traveled
Total energy used by the United States in the year 2000
Generally the equation of speed of rocket v mathematically given by
where
Therefore
b)
Generally the equation of the energy E required to attain prior speed mathematically given by
c)Generally the equation of the energy required to accelerate the rocket mathematically given by
Answer:
hm= 18.2 m
Explanation:
Solution is attached
Answer:
a) The distance of spectator A to the player is 79.2 m
b) The distance of spectator B to the player is 43.9 m
c) The distance between the two spectators is 90.6 m
Explanation:
a) Knowing the time it takes the sound to reach both spectators, we can calculate their position relative to the player, using this equation:
x = v * t
where:
x = position of the spectators
v = speed of sound
t = time
Then, the position for spectator A relative to the player is:
x = 343 m/s * 0.231 s = 79.2 m
b)For spectator B:
x = 343 m/s * 0.128 s
x = 43.9 m
The distance of spectator A and B to the player is 79.2 m and 43.9 m respectively.
c) To calculate the distance between the spectators, please see the attached figure. Notice that the distance between the spectators is the hypotenuse of the triangle formed by the sightline of both. We already know the longitude of the two sides. Then, using Pythagoras theorem:
(Distance AB)² = A² + B²
(Distance AB)² = (79.2 m)² + (43.9 m)²
Distance AB = 90. 6 m
