Aregulation table tennis ball has a mass of 2.7g and is 40mm in diameter. what is its moment of inertia about an axis that passes through its center?

Explanation:

The moment of inertia of a sphere about an axis passing through its center is given by:

where

M is the mass of the sphere

R is the radius of the sphere

For the tennis ball in this problem, we have the following data:

Mass: M = 2.7 g = 0.0027 kg

Radius: R = d/2 = 40 mm / 2 = 20 mm = 0.020 m

Therefore, the moment of inertia is

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.

the displacement produced by the body.  

the amount of force subjected to the body.  

the angle between the direction of force and displacement