Answer:
he average speed for the airplane is 558 km/hr 
Explanati
 
        
             
        
        
        
Answer:
The planet Jupiter completes one revolution of the sun in 362710000 seconds. Long time, right?
Explanation:
3.154x10^7=3.154x10000000=31540000
11.5x31540000=362710000
 
        
             
        
        
        
Answer:
Explanation:
Given dish width= 48ft
 Depth = 4ft
Using equation of a parabola
 x²= 4py
 48² = 4p 4
4p = 576
P= 144ft 
Thus the the receiver should be placed 144ft from t the vertex
 
        
             
        
        
        
Answer:
The displacement of the air drop after 3 second is 18.27 m.
Explanation:
Mass of the rain drop = m = 
Weight of the rain drop = W
Duration of time = t = 3 seconds

Drag force on rain drop = 

Motion of the rain drop:

Net force on the rain drop , F=  W - D




v = 12.18 m/s
Initial velocity of the rain drop = u = 0 (since, it is starting from rest)
v=u+at (First equation of motion)


 (second equation of motion)
 (second equation of motion)

s = 18.27 m
The displacement of the air drop after 3 second is 18.27 m.
 
        
             
        
        
        
Answer:
Explanation:
Wgen the sound is emitting from two speakers, the sound waves interfere each other. the locations at which the destructive interference occurs, we get no sound and the locations where constructive interference occurs, the sound occurs at that locations.