Answer:
perpendicular to 
Explanation:
it means perpendicular to .....should u come across something like this / / , this one means parallel to .....
 
        
                    
             
        
        
        
Answer:
4 %
 2 ) 3.42 %
Explanation:
Sensitivity requirement of 4 milligram means it is not sensitive below 4 milligram or can not measure below 4 milligram . 
Given , 4 milligram is the maximum error possible . 
Measured weight = 100 milligram 
So percentage maximum potential error 
= (4 / 100)  x 100 
4 %
2 )
As per measurement 
weight of 6 milliliters of water 
= 48.540 - 42.745 = 5.795 gram 
6 milliliters of water should measure 6 grams 
Deviation = 6 - 5.795 = - 0.205 gram. 
Percentage of error =(.205 / 6 )x 100
= 3.42 %
 
        
             
        
        
        
 1350kgm/s 
Explanation:
Given parameters: 
Mass of Sam = 75kg
Velocity = 18m/s 
Unknown:
Momentum = ? 
Solution: 
Momentum is the property of a moving body with respect to its mass and velocity. 
Objects in motion have momentum. The more the velocity of a body, the more its momentum. Also, the more the mass of an object, the more momentum it possess. 
Momentum is a function of the mass and the velocity of a body
    Momentum = mass x velocity
    Momentum = 75 x 18 = 1350kgm/s 
learn more: 
Conservation of momentum brainly.com/question/2990238
#learnwithBrainly
 
        
                    
             
        
        
        
The first law states that “objects at rest and objects in motion remain in motion in a straight line unless acted upon by an unbalanced force”. Keeping the ice smooth will make sure there is not friction, friction would slow the puck down