Answer:
Reflects 
Explanation:
A metal spoon looks very shiny because its surface is very smooth, which is why it acts like a mirror and reflects light very well.
 
        
                    
             
        
        
        
Answer:
a)   = 3,375 cm
, b)  f₀ = 77.625 cm
 = 3,375 cm
, b)  f₀ = 77.625 cm
Explanation:
The magnification of a telescope is, to see at the far point of vision (infinity image)
         m = - f₀ /  
The length of the tube is
         L = f₀ + 
a) The focal length of the eyepiece
        L = - m   +
 +  
        L =  (1-m)
 (1-m)
          = L / (1-m)
 = L / (1-m)
Let's calculate
          = 81.0 / (1 - (-23.0)
 = 81.0 / (1 - (-23.0)
          = 3,375 cm
 = 3,375 cm
b) the focal length of the target
        f₀ = -m   
        f₀ = 23 (3.68)
        f₀ = 77.625 cm
 
        
             
        
        
        
Answer:
greenhouse gas is a gas that absorbs and emits radiant energy within the thermal infrared range
Explanation:
Animals and plants need to get rid of carbon dioxide gas through a process called respiration. Carbon moves from fossil fuels to the atmosphere when fuels are burned.
 
        
                    
             
        
        
        
Answer: A) because forces are what stop and start motion 
Explanation:
From Newton's first law, an object tends to stay in state of rest or motion unless acted upon by an unbalanced external force. This is also known law of inertia. This is because a force can stop or start a motion. A force cause body to accelerate to decelerate otherwise the body continues with constant speed. 
 
        
                    
             
        
        
        
D) Partial charge cannot be removed, because charge is a discrete quantity that may exist only at certain values
Explanation:
The electric charge of an object is a property of the object that is related to the ability of the object to experience/exert an electric force: if the object is electrically charge, then it is attracted or repelled by other electrically charged object.
The electric charge of an object depends on the amount of charged particles it has on it. In particular, the fundamental particles that carry electric charge are:
- Protons: they carry electric charge of +e
- Electrons: they carry electric charge of -e
Where "e" is the fundamental charge ( ). Therefore, one proton carry a charge of +e and one electron carry a charge of -e.
). Therefore, one proton carry a charge of +e and one electron carry a charge of -e.
An electron is a fundamental particle: this means that it cannot be divided into smaller particles. This also means that it is not possible to remove part of the charge of the electron: in fact, it is said that electric charge exists only as discrete values, being a multiple of  . Therefore, the correct statement is
. Therefore, the correct statement is
D) Partial charge cannot be removed, because charge is a discrete quantity that may exist only at certain values
Learn more about particles:
brainly.com/question/2757829
#LearnwithBrainly