Answer:
the last one
Explanation:
because it is composed of atoms of two or more elements and carbon is a pure substance composed of only one type of atoms
Explanation:
parallel force component = mg sin (angle in degree)
=58 sin 34*
=32.433N
Answer:
Convection is equal to the conduction plus fluid flow.
Explanation:
Convection is a mode of heat transfer that requires the movement of the molecules of the medium from one point to another. It takes place majorly in fluids (liquids and gases). While conduction is a process by which heat is transfered by the vibtation of molecules of a medium at their possitions, thereby colliding with other neighbouring molecules to transmit heat.
Before convection could occur, there must be conduction of heat by the molecules of the medium which causes their motion. According to the kinetic molecular theory, any molecule of the medium close to the source of heat conducts heat, becomes less dense and thus moves so that its initial position would be occupied by another denser molecule. This continous process generate convection or convectional current. Therefore, convection is as a result of conduction and fluid flow because a molecule must first conduct heat before it moves.
Answer: it is rocket 2
Explanation: I just took the test
Hope it's the right answer for you
