Answer:
 T/√8 
Explanation:
From Kepler's law, T² ∝ R³ where T = period of planet and R = radius of planet.
For planet A, period = T and radius = 2R.
For planet B, period = T' and radius = R.
So, T²/R³ = k
So, T²/(2R)³ = T'²/R³
T'² = T²R³/(2R)³ 
T'² = T²/8
T' = T/√8 
So, the number of hours it takes Planet B to complete one revolution around the star is T/√8 
 
        
             
        
        
        
Correct Answers: 
- The waves have a trough
- the waves have a crest 
- the energy that is transferred move in a perpendicular direction 
- particles move in an up and down motion
 
        
                    
             
        
        
        
You have three known variables:
Acceleration - 

Time - 

Initial Velocity - 

For the first part of your question:

For the second part of your question:

This still needs to be converted to m/h:
 
 
        
        
        
Here is the answer to the given question above. If Angela has been feeling fatigued and a test is used to check the basal metabolic rate and revealed that she has a low metabolic rate, therefore, the possible diagnosis for Angela would be HYPOTHYROIDISM. <span>The BMR test works by precisely measuring the amount of oxygen that you consume when your body is basal, or completely at rest. Hope this answers your question.</span>
        
             
        
        
        
Answer:
Exercise 1; 
The centripetal acceleration is approximately 94.52 m/s²
Explanation:
1) The given parameters are;
The diameter of the circle = 8 cm = 0.08 m
The radius of the circle = Diameter/2 = 0.08/2 = 0.04 m
The speed of motion = 7 km/h = 1.944444 m/s
The centripetal acceleration = v²/r = 1.944444²/0.04 ≈ 94.52 m/s²
The centripetal acceleration ≈ 94.52 m/s²