Answer:
<u>We are given:</u>
displacement (s) = 130 m
acceleration (a) = -5 m/s²
final velocity (v) = 0 m/s      [the cars 'stops' in 130 m]
initial velocity (u) = u m/s
<u>Solving for initial velocity:</u>
From the third equation of motion:
v² - u² = 2as
replacing the variables
(0)² - (u)² = 2(-5)(130)
-u² = -1300
u² = 1300
u = √1300
u = 36 m/s
 
        
             
        
        
        
A because centrifugal is to velocity to how slow or fast something is  and centrifugal has expresssed as ac=v2 / r (1)<span />
        
                    
             
        
        
        
Answer:
Explanation:
Calculate the volume of the lead

Now calculate the bouyant force acting on the lead


This force will act in upward direction
Gravitational force on the lead due to its mass  will act in downward direction 
Hence the difference of this two force

If V is the volume submerged in the water then bouyant force on the bobber is 

Equate bouyant force with the tension and gravitational force

Now Total volume of bobble is

=
 
        
             
        
        
        
Answer:
Constructive Interference
Explanation:
Constructive Interference occurs when two waves superimpose and make bigger amplitudes. 
In constructive interference, the crests of one wave fall on the crests of second wave and the amplitudes add up. The amplitude of the resultant wave is equal to sum of the amplitude of the individual waves. Similarly, the trough of first wave falls on the trough of other wave and they superimpose to create the trough of the resultant wave. 
For Example, In the attachment, two waves A and B superimpose and demonstrate Constructive interference to create the wave C.
 
        
             
        
        
        
Answer:
22145.27733 ft
124984.76055 ft
Explanation:
The equation of pressure is

where,
 =Atmospheric pressure = 800 mbar
 =Atmospheric pressure = 800 mbar
k = Constant
h = Altitude = 35000 ft


Now


The altitude will be 22145.27733 ft


The elevation is 124984.76055 ft