The real part of the complex number 7 - 4i is 7.

The standard reduction potential for 2H⁺ + 2e⁻ → H₂ is 0.00 V.

The relationship is given by Q = CV, where Q is the charge, C is the capacitance, and V is the voltage across the capacitor.

The relationship is given by I = Q / t, where I is current, Q is charge, and t is time.

The relationship is given by Ohm's law: I = V/R.

In a uniform electric field, the electric field E is related to the potential difference V and the distance d by the equation E = V/d.

The frequency (f) is the reciprocal of the period (T), given by the formula f = 1/T.

The frequency (f) of a wave is the reciprocal of the period (T), given by the formula f = 1/T.

The relationship is ΔG = -nFE, where n is the number of moles of electrons transferred.

In a fluid at rest, pressure increases with depth due to the weight of the fluid above.

For a sinusoidal AC waveform, the RMS value is related to the average value by RMS = Average / √2.

The period T is the reciprocal of frequency f, given by T = 1/f.

The relationship is given by V_p/V_s = N_p/N_s, where V is voltage and N is the number of turns.

The rate of a reaction is directly proportional to the concentration of reactants raised to their respective powers in the rate law.

According to the Arrhenius equation, the rate of reaction increases exponentially with temperature.

For a sinusoidal AC current, the relationship is RMS = Average / √2.

1 Joule is defined as the work done when a force of one Newton moves an object one meter, hence 1 J = 1 N·m.

Both statements are correct; 1 Pascal (Pa) is defined as 1 Newton per square meter.

The angle of diffraction is inversely proportional to the wavelength; as the wavelength increases, the angle of diffraction decreases.

The angle of diffraction is directly proportional to the wavelength of light used in a diffraction grating, as described by the grating equation.

Ohm's Law states that the voltage (V) across a conductor is directly proportional to the current (I) flowing through it, with the resistance (R) being the constant of proportionality. Therefore, V = I * R.

Ohm's Law states that the voltage (V) across a conductor is directly proportional to the current (I) flowing through it, with the resistance (R) being the constant of proportionality. Therefore, V = I * R.

The repeating unit of polystyrene is derived from the monomer styrene, which has the structure -CH=CH2-.

Using Ohm's law (R = V/I), R = 25V / 5A = 5Ω.

The resting membrane potential of a typical neuron is approximately -70 mV.

(15 + 5) = 20, then 20 × 2 = 40.

(15 + 5) = 20, so 20 × 2 = 40.

15 ÷ 3 = 5, then 5 × 4 = 20.

Cytokinesis results in the physical separation of the cytoplasm, leading to the formation of two daughter cells.

A capacitor is used in semiconductor circuits to store charge temporarily.