Answer:
None
Explanation:
Force, F is given by ma where m is the mass of an object and a is acceleration
Acceleration is the rate of change in velocity per unit time. Since skaters with mass of 75 kg and 50 kg are moving at a constant speed, there is no acceleration hence F=50*0=0 and F=75*0=0
For skater of 45 kg, he is at rest to mean the initial and final velocitu of the skater is zero hence no acceleration, the force will be 45*0=0
Therefore, none of the skaters will experience a greater net force.
 
        
             
        
        
        
Since the velocity of the real plane is 0, p=mv=0.  So the paper airplane actually has more momentum since it's value is not 0.
        
             
        
        
        
    <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>
        
             
        
        
        
Explanation:
iy finds so she said !gWelcome to Gboard clipboard, any text that you copy will be saved here.Welcome to Gboard clipboard, any text that you copy will be saved here.Welcome to Gboard clipboard, any text that you copy will be saved here.Tap on a clip to paste it in the text box.Tap on a clip to paste it in the text box.Touch and hold a clip to pin it. Unpinned clips will be deleted after 1 hour.Use the edit icon to pin, add or delete clips.Touch and hold a clip to pin it. Unpinned clips will be deleted after 1 hour.Use the edit icon to pin, add or delete clips.
 
        
             
        
        
        
Answer:
100 cc 
Explanation:
Heat released in cooling human body by t degree
= mass of the body x specific heat of the body x t
Substituting the data given 
Heat released by the body 
= 70 x 3480 x 1 
= 243600 J
Mass of water to be evaporated 
= 243600 / latent heat of vaporization of water
= 243600 / 2420000 
= .1 kg
= 100 g 
volume of water
= mass / density
= 100 / 1
100 cc 
1 / 10 litres.