Which statement best summarizes the law of conservation of energy?
a) when work is done, energy is lost.
b) heat flows from a warm body to a cold body.
c) if energy disappears in one form, it must reappear in another.
d) the fewer the number of valence electrons, the better the insulator.

5.a fishing rod is formed from a composite material of 0.5 kg of glass fibers embedded in a matrix of 0.5 kg of epoxy resin. the glass fibers are assumed to be long, continuous and unidirectional. to achieve a greater stiffness it is proposed to use a different composite that is comprised of long continuous carbon fibers that will be embedded in a matrix of 0.5 kg of epoxy resin. if the modulus of elasticity of the carbon fiber composite is 10% greater than the elastic modulus of the glass fiber composite, estimate the mass of carbon fibers that will be used to make the carbon fiber composite. assume the applied tensile stress is parallel to the direction of the long axis of the fibers. the epoxy resin, glass fiber, and carbon fiber have an elastic modulus of 5, 86, and 350 gpa respectively and a density of 1100, 2500, and 1800 respectively.

Astrategy for speeding up hard drive performance is

Jenny is the project manager and her company. she needs to break her current project into parts that her employees can work on. if jenny brings her project into as many small parts, but will lead to? a. increased quality control b. macro-management c. project disruption d. micro-management