Asimple pendulum with length l is swinging freely with
smallangular amplitude. as the pendulum passes its central
(orequilibrium) position, its cord is suddenly and rigidly clamped
atits midpoint. in terms of the original period t of thependulum,
what will the new period be?

it will be 1/√2 of its original period.

Explanation:

answer: 802.3 kilo joules of energy represents 191.75 kilo calorie of energy.

explanation:

energy released during combustion of one mole methane = 802.3 kilo joules

if 1 kilo joule = 0.239006   kilo calorie

then ,802.3 kilo joule will be = 802.30.239006 kilo calorie

802.3 kilo joule = 191.75 kilo calorie

hence, the energy in kilo calorie is 191.75 kilo calorie.

this is a good question! i'll do some research and come back when i have the answer!