Dos altavoces A y B, son alineados por el mismo amplificador y emiten ondas senoidales en fase. B esta a 2.00 m a la derecha de
A. Considere el punto P a lo largo de la extensión de la línea que une a los
altavoces, a una distancia x a la derecha de A. Ambos altavoces emiten ondas
sonoras que viajan directamente del altavoz a P. La frecuencia de las ondas
sonoras producidas por los altavoces es de 206 Hz. ¿Para qué valores de x
habrá interferencia destructiva en P? ¿Y constructiva?

Study this image. which statements best describe the rock shown? check all that apply. the grains of this rock are jagged. this rock has several coarse grains. the grains in this rock are very large. this rock has a non-banded pattern. the color of this rock is determined by its texture.

You have been asked to lead a demonstration for the undergraduate microbiology lab course about the uses of negative staining when studying bacteria. a "negative" stain does not stain the bacterial cell itself but stains the space between cells. under magnification, the acidic (negativelycharged) nature of the stain will be repelled by the negatively charged bacterial cell wall and willleave the cell colorless in a stained background. negative stains are used primarily to reveal the presence of negatively charged bacterial capsules; therefore, they are also called capsule stains. encapsulated cells appear to have a halo surrounding them. the negative stain procedure does not require heat fixation, which limits any chances of alteration in bacterial cell shape and size. the bacterial suspension is added to a drop of stain, such as nigrosin or eosin, and drawn across the glass slide using a coverslip.nigrosin staining-not safranin staining-of klebsiella pneumoniae will allow for the visualization of the cell shape and the determination of the presence of a capsule.true/false

Knowing the importance of the essential elements, why would someone chose a diet that does not address all of them?