A solid sphere of mass M and radius R rolls down an incline without slipping. Its moment of inertia about an axis through its center of mass is 2MR^{2}/5. At any instant while in motion, its rotational kinetic energy about its center of mass is what fraction of its total kinetic energy ? Answers:
2/5
1/2
1/4
2/7
1/3

What do elements in a family tend to share. a.) similar periods b.) similar groups c.) similar atomic symbols d.) similar chemical properties and characteristics

The freezing and boiling point of a substance changes as the air pressure around it changes. for example, at a lower air pressure (higher altitude) it is easier for water molecules to escape from liquid into the air. in a high altitude city such as denver, colorado compared to a sea-level city such as houston, texas, water

Give an example in which the electrical energy changes to light energy