Why if density of a liquid is 20 g cm-1, height is 4 cm and gravitational field strength is 10 n kg-1, pressure of liquid is 800 pascal
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A new type of chemically modified graphene, EDTA-modified reduced graphene (EDTA-RG), was synthesized by silanization of graphene with N-(trimethoxysilylpropyl) ethylenediamine triacetic acid (EDTA-silane). It was found that the presence of EDTA on the graphene surface enables the formation of a very stable suspension of EDTA-RG in Nafion/ethanol solution. When deposited onto a glass carbon electrode surface, a very stable, uniform thin film of EDTA-RG−Nafion composite was successfully obtained. The electrochemical behavior of this EDTA-RG−Nafion modified electrode, electrochemical catalysis, ionic selectivity, and biocompatibility, have been investigated using a variety of electrochemical techniques. The ion selectivity was investigated by using a negatively charged probe
We would thus not be considering the instantaneous E(t) and H(t) used above, but rather a complex (vector) amplitude for each which describes a coherent wave's phase (as well as amplitude) using phasor notation. Note that these complex amplitude vectors are not functions of time, as they are understood to refer to oscillations over all time. A phasor such as {\displaystyle \mathbf {E_{\mathrm {m} }} } is understood to signify a sinusoidally varying field whose instantaneous amplitude E(t) follows the real part of {\displaystyle \mathbf {E_{\mathrm {m} }} e^{j\omega t}} where ω is the (radian) frequency of the sinusoidal wave being considered.