Answer: Sanjay can burn 100 more calories every 30 minutes if he chooses to lift weights instead of watching tv 
Explanation: 133-33= 100 calories (says in article and i just answered it)
 
        
             
        
        
        
K = 1/2 m x v^2
m = mass on the cart
V = velocity imparted to the cart
KA = 1/2 mA x vA^2.......................(1)
KB = 1/2 mB x vB^2........................(2)
Diving equation 1 by equation 2, we get - 
KA/KB = mA/mB
= 2 
KA = 2 x KB
Option A is correct
 
        
             
        
        
        
The correct option is A.
Fluorescent lamps have many advantages over incandescent lamps and the options given in B, C and D are part of these advantages. The option given in A is a disadvantage and not an advantage. This is because, as a result of operating at an higher temperature, it will gives out and radiate more heat. 
        
             
        
        
        
I believe the answer is A
        
                    
             
        
        
        
Answer: Although low frequency sound travels further than high-frequency sound, calls at higher frequencies give the bats more detailed information--such as size, range, position, speed and direction of a prey's flight. Thus, these sounds are used more often.
Explanation: