Explanation:
the correct answer is Option 5.√½gh.
hope this helps you.
Answer:
Explanation:
For the marble :
= height from which the marble is released
= speed of center of mass of marble at the bottom
= angular speed of marble =
= mass of the marble
= radius of the marble
Moment of inertia of marble (solid sphere) is given as
Using conservation of energy between Top and bottom
Kinetic energy at bottom + rotational kinetic energy at bottom = potential energy at top
Eq-1
For Cube :
= height from which the cube is released
= speed of center of mass of cube at the bottom
= mass of the cube
Using conservation of energy between Top and bottom
Kinetic energy at bottom = potential energy at top
Eq-2
Using Eq-1 and Eq-2
Taking square-root both side
Pt or Ac Actinium-227 is more likely to be radioactive.
Answer:
answer is friction. MCQ A is answer