Viscosity measures a fluid's resistance to flow; higher viscosity means the fluid flows less easily.

The word 'pleasant' indicates good weather suitable for a picnic.

Maximum possible weight = Measured weight + Absolute error = 10 + 0.1 = 10.1 kg.

True weight range = Measured value ± Absolute error = 200 ± 5 = 195 g to 205 g.

'Ameliorate' means to make something better or improve it.

'Cognizant' means being aware or having knowledge of something, which is relevant to the discussion in the passage.

'Ephemeral' means lasting for a very short time, indicating transience.

'Ephemeral' means lasting for a very short time, which aligns with the context of the passage discussing fleeting trends.

The work done in moving a charge in an electric field is equal to the change in electric potential energy.

The correct form is 'were' for plural subjects.

Using Newton's second law, the net force is (3 kg * 9.8 m/s²) - (2 kg * a) = (2 kg + 3 kg) * a. Solving gives a = 1.2 m/s².

Using Newton's second law, the net force is (3 kg - 2 kg) * g = 1 kg * 9.8 m/s². The total mass is 5 kg, so a = F/m = 9.8 N / 5 kg = 1.96 m/s², approximately 2 m/s².

For capacitors in series, 1/C_eq = 1/C1 + 1/C2. Thus, 1/C_eq = 1/2 + 1/3 = 5/6, giving C_eq = 6/5 = 1.2μF.

For capacitors in series, the equivalent capacitance C_eq is given by 1/C_eq = 1/C1 + 1/C2. Thus, 1/C_eq = 1/2 + 1/3 = 5/6, so C_eq = 6/5 = 1.2μF.

The equivalent capacitance of capacitors in series is given by 1 / (1/C1 + 1/C2).

Relative speed = 50 km/h + 70 km/h = 120 km/h = 33.33 m/s. Time = Distance/Speed = 200 m / 33.33 m/s = 6 seconds.

Relative speed = 50 km/h + 70 km/h = 120 km/h = 33.33 m/s. Time = Distance / Relative speed = 200 m / 33.33 m/s = 6 seconds.

Relative speed = 70 + 50 = 120 km/h. Distance apart after 2 hours = 120 × 2 = 240 km.

Relative speed = 70 + 50 = 120 km/h. Distance apart after 2 hours = 120 * 2 = 240 km.

Relative speed = 40 + 60 = 100 km/h. Distance apart after 1 hour = 100 km.

At the midpoint, the electric fields due to both charges cancel each other out, resulting in a net electric field of 0.

The electric fields due to both charges at the midpoint cancel each other, resulting in a net electric field of 0.

The third charge must be placed between +q and -q, closer to -q to balance the forces.

The electric field is zero at a point closer to -q because the magnitudes of the fields due to both charges will be equal at that point.

The distance between the centers of two externally tangent circles is the sum of their radii: 3 + 4 = 7 cm.

Constructive interference occurs when the path difference is an integer multiple of λ.

A phase difference of π radians corresponds to a path difference of λ/2, leading to destructive interference.

Constructive interference occurs when the path difference is an integer multiple of λ, and 0.5λ corresponds to a half wavelength, leading to constructive interference.

Phase difference (Δφ) = (2π/λ) * path difference. For sound in air, λ = v/f. Assuming f = 1000 Hz and v = 340 m/s, λ = 0.34 m. Δφ = (2π/0.34) * 0.5 = π/2 rad.

Phase difference (φ) = (2π/λ) * path difference. Given λ = 1 m, φ = (2π/1) * 0.5 = π rad.