Answer:

Explanation:
Given that
The speed of the airplane ,v= 142 m/s
The speed of the air ,u = 30 m/s
Lets take angle make by airplane from east direction towards north direction is θ .
Now by using diagram ,we can say that

Now by putting the values in the above equation we get



Therefore the angle will be 12.19° .
  
 
        
             
        
        
        
Answer:
<em>UP</em>
Explanation:
heat flows from higher level to lower level
( higher concentration to lower concentration )
and since temperature in above block is less than the lower block, the heat will flow from lower block to higher block .
( Up )
 
        
             
        
        
        
<u>The Weight  </u>is a vector whose magnitude is the product of the mass m of the object and the magnitude of the local gravitational acceleration. Its always directed toward  the center of the Earth.
 
        
             
        
        
        
Answer:
Alice Distance = 100 meters
Peter's Distance = 3 km
Alice Displacement and Peter's displacement are both 100 meters upwards. 
Explanation:
To solve this question, we have to first define distance and displacement. 
Distance is simply the measurement of the sum of all paths travelled from one point to another while displacement is measurement of the shortest distance from initial point to final point.
Now, Alice and Peter are moving from the same point. 
Alice distance travelled is 100 meters. 
Also, her displacement will be 100 meters because it is the shortest distance to the summit of the cliff. 
Now, for Peter, he decides to take a longer route which is 3 km in distance. 
However, the shortest path which is the displacement is still 100 meters. 
Thus, Peter's displacement is 100 meters.