Answer:
see explanation
Explanation:
You are missing the chart with the rates and time to do this, however, I wll do it with a similar exercise here, and you only need to replace the procedure with your data:
See the attached table.
From the left we have: 
r = 1/2 (50 + 48 + 46 + 44 + 42 + 40) = 135 L/min
From the right we have:
r = 1/2 (48 + 46 +44 + 42 + 40 + 38) = 129 L/min.
And this should be the correct answer. Watch your chart and replace if it's neccesary.
 
        
             
        
        
        
Hi there!
Question - Which of the following statements is true? 
Answer - C. You are exposed to nuclear radiation every day. 
Why - "radiation in the form of elementary particles emitted by an atomic nucleus, as alpha rays or gamma rays, produced by decay of radioactive substances or by nuclear fission."
 
        
             
        
        
        
Answer:
200N
Explanation:
EVERY FORCE IS OPPOSED BY AN EQUAL FORCE, REGARDLESS OF THE WEIGHT OF THE OBJECTS APPLYING THE FORCE.
 
        
             
        
        
        
Answer:
The polar coordinate of  is
 is  .
.
Explanation:
Given a point in rectangular form, that is  , its polar form is defined by:
, its polar form is defined by:
 (1)
 (1)
Where:
 - Norm, measured in meters.
 - Norm, measured in meters.
 - Direction, measured in sexagesimal degrees.
 - Direction, measured in sexagesimal degrees.
The norm of the point is determined by Pythagorean Theorem:
 (2)
 (2)
And direction is calculated by following trigonometric relation:
 (3)
 (3)
If we know that  and
 and  , then the components of coordinates in polar form is:
, then the components of coordinates in polar form is:


Since  and
 and  , direction is located at 3rd Quadrant. Given that tangent function has a period of 180º, we find direction by using this formula:
, direction is located at 3rd Quadrant. Given that tangent function has a period of 180º, we find direction by using this formula:


The polar coordinate of  is
 is  .
.
 
        
             
        
        
        
Answer:
 ms⁻¹
 ms⁻¹
Explanation:
 = diameter of merry-go-round = 4 m
 = diameter of merry-go-round = 4 m 
 = radius of merry-go-round =
 = radius of merry-go-round =  =
 =   = 2 m
 = 2 m
 = moment of inertia = 500 kgm²
 = moment of inertia = 500 kgm²
 = angular velocity of merry-go-round before ryan jumps = 2.0 rad/s
 = angular velocity of merry-go-round before ryan jumps = 2.0 rad/s
 = angular velocity of merry-go-round after ryan jumps = 0 rad/s
 = angular velocity of merry-go-round after ryan jumps = 0 rad/s
 = velocity of ryan before jumping onto the merry-go-round
 = velocity of ryan before jumping onto the merry-go-round
 = mass of ryan = 70 kg
 = mass of ryan = 70 kg 
Using conservation of angular momentum 



 ms⁻¹
 ms⁻¹