To determine if a rigid body is in equilibrium the vector sum of the gravitational forces acting on the particles of the body can be replaced by a single force acting at: the center of mass the geometrical center the center of gravity a point on the boundary none of the above

Engineers find a new metal that is stronger than steel but much lighter. this material is also significantly cheaper than what is currently used for most aircraft, available in large quantities, and easy to manufacture. the engineers are excited because this new material will lower the costs of buying and operating airplanes for companies. what is probably the best step for the engineers to make next?

Specific heat refers to the amount of heat required to change 1 gram of a substance by degree(s) celsius

What is the moment of inertia i of this assembly about the axis through which it is pivoted? express the moment of inertia in terms of mr