C.There is an invisible magnetic field around the magnet where it exerts magnetic force
 
        
             
        
        
        
Answer:
The rate at which radar must rotate is 0.335 rad/s.
Explanation:
Given that,
Velocity = 65 m/h = 29.0576 m/s
Angle = 15°
Suppose, the radius given by

We need to calculate the rate at which radar must rotate
Using formula of linear velocity


Where, v = velocity
r = radius
Put the value into the formula


Hence, The rate at which radar must rotate is 0.335 rad/s.
 
        
             
        
        
        
Answer: Distance: 27m Displacement: 7m
Explanation: Distance is total, Displacement is from the start.
Hope this helped!
Mark Brainliest if you feel like it!
 
        
             
        
        
        
Answer:
I = 274.75 kg-m²
Explanation:
given,
mass of horizontal platform = 129 Kg
radius of the disk = 1.51 m
mass of the person(m_p) = 67.5 Kg
standing at distance(r_p) = 1.09 m
mass of dog(m_d) = 25.3 Kg
sitting near the person(r_d) = 1.37 m from center
moment of inertia = ?
Moment of inertia of disc = 
Moment of inertia of the system



I = 274.75 kg-m²
 
        
             
        
        
        
D, I hope this is correct!