A simple mobile is made by attaching 4 small balls(0.1 kg each)

Which statement is true about an object that is moving in a circular motion due to centripetal force, f, when the radius of its circular motion is doubled? the new force then becomes equal to 2f the new force then becomes equal to f the new force then becomes equal to f/2 the new force then becomes equal to f2 the new force then becomes equal to 1/f

What is a possible explanation for a set of facts that can be tested by further investigations called

Which of the following best explains what happens when the kinetic energy of particles in a liquid state decreases?