Select all of the factors that are accounted for by cell theory 1. The growth and reproduction of unicellular organisms
2. The generation and replacement of cells in multicellular organisms
3. The origin and nature of the very first cells, from which all other cells derive
4. The existence of erythrocytes, neurons, and other cells that do not reproduce

If the force applied to an object remains constant, is more power needed for the object to move faster ? explain

1.what is where an object is located 2. what is how fast an objects speed is changing 3. what is how fast an object is moving

Suppose a diode consists of a cylindrical cathode with a radius of 6.200×10^−2 cm , mounted coaxially within a cylindrical anode with a radius of 0.5580 cm . the potential difference between the anode and cathode is 260 v . an electron leaves the surface of the cathode with zero initial speed (v initial=0). find its speed vfinal when it strikes the anode.