Car is moving on the glassy slope with constant speed
Now we know that 

so acceleration is rate of change in velocity
as we know that velocity is constant here so acceleration is zero
so here 

now as we know by Newton's II law

since a = 0

so net force will be ZERO on it during this motion
 
        
             
        
        
        
<u>Answer:</u> 0.774 g/cm^3 
<u>Explanation:</u> 
 Density is measured in g/cm^3 
480g / 620cm^3 = 0.774 g/cm^3 
Does this help? Sorry if not.
 
        
                    
             
        
        
        
Answer:
The potential difference is 121.069 V
Solution:
As per the question:
Diameter of the cylinder, d = 9.0 cm = 0.09 m
Length of the cylinder, l = 40 cm = 1.4 m
Average Resistivity, 
Current, I = 100 mA = 0.1 A
Now, 
To calculate the potential difference between the hands:
Cross- sectional Area of the Cylinder, A = 
Resistivity is given by:



Now, using Ohm's Law:
V = IR

 
        
             
        
        
        
Answer:
 gravity is the force by which a planet or another body draws objects towards its Centre. the force of gravity keeps all of the planets in an orbit around the sun.
Explanation:
what is gravity made of?
gravity are made of proposed gravity parts that are made quantum particles which called gravitational anywhere there is gravitation there is gravity like on Earth in the Solar System most importantly in the minisclue infant and intervention universe .
 
        
             
        
        
        
Answer:
reverberation time appropriate to the use and size of the room, adequate balance between direct and reverberant sound, intimacy and good sound diffusion in the room to obtain a uniform sound.
Explanation:The process of ... second method measured the speed of sound propagation by the phase shift.