<span> Let’s determine the initial momentum of each car. 
 #1 = 998 * 20 = 19,960 
 #2 = 1200 * 17 = 20,400 
 This is this is total momentum in the x direction before the collision. B is the correct answer. Since momentum is conserved in both directions, this will be total momentum is the x direction after the collision. To prove that this is true, let’s determine the magnitude and direction of the total momentum after the collision. 
 Since the y axis and the x axis are perpendicular to each other, use the following equation to determine the magnitude of their final momentum. 
 Final = √(x^2 + y^2) = √(20,400^2 + 19,960^2) = √814,561,600 
 This is approximately 28,541. To determine the x component, we need to determine the angle of the final momentum. Use the following equation. 
 Tan θ = y/x = 19,960/20,400 = 499/510 
 θ = tan^-1 (499/510) 
 The angle is approximately 43.85˚ counter clockwise from the negative x axis. To determine the x component, multiply the final momentum by the cosine of the angle. 
 x = √814,561,600 * cos (tan^-1 (499/510) = 20,400</span>
        
             
        
        
        
Answer:
The mini Cooper will experience the greater force 
Explanation:
Generally, a bulldozer has a greater mass compared to a Mini Cooper hence when both of these vehicles interact in an head on collision the Mini Cooper will experience a greater force because the bulldozer has a greater momentum 
 
        
             
        
        
        
Answer:
Decreases the transparency of the atmosphere to infrared light. 
Explanation:
When a large amount of green-house gases are present in the atmosphere, the layer of these gases become opaque to infrared radiation and radiation from the sun get trapped into these gases molecules. These excited molecules radiate this energy into our own atmosphere and that why the temperature of Earth is rising due to the Green-House effect. 
 
        
             
        
        
        
Answer:

Explanation:
given,
traffic light weight = 100 N
angle at which the rope is supported = 30°
vertical component of force = ?







 
        
             
        
        
        
Answer:Density: The molecules of a liquid are packed relatively close together. Consequently, liquids are much denser than gases. The density of a liquid is typically about the same as the density of the solid state of the substance. ... Compression would force the atoms on adjacent molecules to occupy the same region of space.
Explanation: