Answer:
Explanation:
You didn't last any of the variables. You have to list the variables to tell which are which.
 
        
                    
             
        
        
        
A. attract each other.
The Law of Universal Gravitation discusses the phenomenon of gravity. Remember that gravity is the force that keeps us on Earth; the Earth pulls us down, and our bodies pull back.  Gravity is the force of attraction, so the correct answer is a).
        
             
        
        
        
10.67m/s²
32N
Explanation:
Given parameters: 
Mass of the body = 3kg 
velocity of the mass = 4m/s 
radius of circle = 0.75m 
Unknown: 
centripetal acceleration = ? 
centripetal force = ? 
Solution: 
The centripetal force is the force that keeps a radial body in its circular motion. It is directed inward: 
    Centripetal acceleration  = 
    v is the velocity of the body
     r is the radius of the circle 
   putting in the parameters: 
    Centripetal acceleration = 
     Centripetal acceleration = 10.67m/s²
 Centripetal force = m   
 
           m is the mass 
  Centripetal force = mass x centripetal acceleration
                               = 3 x 10.67
                               = 32N 
learn more: 
Acceleration brainly.com/question/3820012
#learnwithBrainly
 
        
             
        
        
        
Answer: 1175 J
Explanation:
Hooke's Law states that "the strain in a solid is proportional to the applied stress within the elastic limit of that solid."
Given
Spring constant, k = 102 N/m
Extension of the hose, x = 4.8 m
from the question, x(f) = 0 and x(i) = maximum elongation = 4.8 m
Work done = 
W = 1/2 k [x(i)² - x(f)²]
Since x(f) = 0, then
W = 1/2 k x(i)²
W = 1/2 * 102 * 4.8²
W = 1/2 * 102 * 23.04
W = 1/2 * 2350.08
W = 1175.04
W = 1175 J
Therefore, the hose does a work of exactly 1175 J on the balloon 
 
        
             
        
        
        
Answer:
i think it would be B, a large factory
Explanation: