For what reasons could a theory be changed or replaced? check all that apply. new technology is developed that provides more information about the theory. new experimental methods are designed to test a theory. a new, untested hypothesis is proposed. new information is discovered that does not support the theory. a single experiment produces results that differ from all previous experiments.

Bob camina 200 m sur, luego trota 400 m suroeste, luego camina 200 m en una dirección 30? norte del este. a. dibuje una gráfica de los movimientos de bob. use una regla y transportador. b. use método gráfico y analíitico para hallar el desplazamiento total que bob recorrió. (magnitud y dirección) c. compare los resultados obtenidos por el método gráfico y analítico. (por ciento de diferencia).

How does the kinetic energy of a charge change as the charge moves under the effect of an electric field from higher potential to lower potential? a.the kinetic energy increases.b.the kinetic energy decreases.c.the kinetic energy remains the same.d.the kinetic energy is always zero.

Glass has a hardness that is in the middle of the hardness scale. what is the hardness of glass?