A body A of mass M while falling vertically downwards under gravity breaks into two parts; a body B of mass (1/3)M and body C of mass (2/3)M.

(a) Each piece regenerates into a new Planaria. (b) Its filaments break into smaller pieces or fragments and each fragment gives rise to a new filament. (c) It releases spores which germinate into...

(i) provides O2 to the body. (iii) helps the body to get rid of CO2.

The correct answer is (c) vA = vB  Explanation: The ball 'A' thrown vertically upward will return back to the initial point with the same thrown speed but its direction will be downwards....

(c) does not shift horizontally Explanation:  Since the body breaks due to internal forces, the center of mass of all parts taken together will remain the same and will not shift horizontally.

(c) in opposite directions with equal speeds  Explanation:  Let the velocities of two parts be v and v' and mass of each part = m. Momentum before the break = 2m*0 =...

The correct answer is (a) 2Ω.

(c) a heavy nucleus bombarded by thermal neutrons breaks up

(c) does not shift horizontally Explanation:  Since the body breaks due to internal forces, the center of mass of all parts taken together will remain the same and will not shift horizontally.

(a) the total momentum must be conserved (d) the total kinetic energy must change.  Explanation:  When the block moving in air breaks into two parts due to internal forces, the speeds of the...

Water flows downwards on any slope or on mountains due to the gravitational force acting upon it.