Using Coulomb's law, F = k * |q1 * q2| / r^2 = (9 × 10^9) * (2 × 10^-6) * (3 × 10^-6) / (0.5)^2 = 0.24 N.

Using Coulomb's law, F = k * |q1 * q2| / r^2 = (9 × 10^9) * |2 × 10^-6 * -3 × 10^-6| / (0.5)^2 = -24 N.

Using Coulomb's law, F = k * |q1 * q2| / r^2 = (9 × 10^9) * |2 × 10^-6 * -3 × 10^-6| / (0.5)^2 = -1.08 N.

The force experienced by a charge q in an electric field E is given by F = qE.

The force experienced by a charge q moving with velocity v in a magnetic field B is given by the Lorentz force law: F = q(v × B), which can be expressed as F = qvB sin(θ), where θ is the angle between the velocity and the magnetic field.

The magnetic force on a charge moving in a magnetic field is given by F = qvB sin(θ), where θ is the angle between the velocity and the magnetic field.

The force on a current-carrying conductor in a magnetic field is given by F = BIL sin(θ), where θ is the angle between the conductor and the magnetic field.

The force experienced by a current-carrying conductor in a magnetic field is known as the Lorentz force.

Using the formula F = BIL sin(θ), F = 0.3 * 2 * 5 * sin(30°) = 1.5 N.

The force on a charge moving in a magnetic field is maximum when the angle θ between the velocity vector and the magnetic field is 90°, as sin(90°) = 1.

The force on a charge moving in a magnetic field is given by F = qvB sin(θ), where q is the charge, v is the velocity, B is the magnetic field strength, and θ is the angle between the velocity and the magnetic field.

The force on a charge moving in a magnetic field is given by F = qvBsinθ, where θ is the angle between v and B.

According to Newton's first law, no net force is required to maintain constant velocity.

The boiling point elevation is calculated using the formula ΔT_b = i * K_b * m, where i is the van 't Hoff factor.

The formula for calculating density is Density = Mass/Volume.

The electric power can be calculated using multiple formulas: P = IV (power = current × voltage), P = I^2R (power = current squared × resistance), and P = V^2/R (power = voltage squared / resistance).

The formula for calculating kinetic energy is KE = 1/2 mv², where m is mass and v is velocity.

Absolute error is calculated as the difference between the measured value and the true value.

The average power (P) in an AC circuit is given by P = VI cos(φ), where φ is the phase difference between voltage and current.

The capacitance (C) of a parallel plate capacitor is given by C = εA/d, where ε is the permittivity, A is the area of the plates, and d is the distance between them.

The concentration of hydrogen ions is calculated as [H+] = 10^-pH = 10^-5 M.

The concentration of hydrogen ions is calculated using [H+] = 10^-pH.

The density of a crystalline solid is calculated using the formula Density = mass/volume.

The depression of freezing point is calculated using the formula ΔTf = Kf * m, where Kf is the freezing point depression constant and m is the molality of the solution.

The formula for gravitational force is F = G(m1m2)/r², where G is the gravitational constant.

The frequency of a wave is calculated using the formula f = 1/T, where T is the period of the wave.

The formula for calculating the heat energy required to change the temperature of a substance is Q = mcΔT, where m is mass, c is specific heat capacity, and ΔT is the change in temperature.

The formula for calculating heat transfer due to conduction is Q = kA(T1-T2)/d, where k is the thermal conductivity, A is the area, and d is the thickness.

The formula for calculating the heat transfer in a substance is Q = mcΔT, where Q is the heat added, m is the mass, c is the specific heat capacity, and ΔT is the change in temperature.

The impedance (Z) in an RLC series circuit is calculated using the formula Z = √(R^2 + X^2), where X is the total reactance.