Answer:
The radius of the blender is approximately 0.5041
meters
Explanation:
The given parameters are;
The mass of the strawberry, m = 0.05 kg
The speed with which the strawberry is spun, v = 11.0 m/s
The centripetal force holding the strawberry = 12.0 N
The formula for the centripetal force,
, is given as follows;

Where;
r = The radius of the centripetal rotation, which is the radius of the blender

Substituting the values gives;

The radius of the blender, r ≈ 0.5041
meters.