9.One end of a copper rod is placed in a flame of a Bunsen burner. Small pleces of wax placed along the rod melt at progressively larger distance from the flame. Heat is transferred
through the rod by
A Conduction
B. Convection
c. Radiation

HELLPPP PLSSS

The 5-kg cylinder is initially at rest when it is placed in contact with the wall b and the rotor at a. if the rotor always maintains a constant clockwise angular velocity v = 6 rad> s, determine the initial angular acceleration of the cylinder. the coefficient of kinetic friction at the contacting surfaces b and c is mk = 0.2.

Which lists the main components of darwin’s theory of evolution? a. random mutations drive evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms do not change. b. natural selection drives evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms change over time. c. natural selection drives evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms change over time. d. random mutations drive evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms do not change.

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island