Work = F × d × cos(θ) = 15 N × 4 m × cos(60°) = 15 × 4 × 0.5 = 30 J.

Work done (W) = P * ΔV = 3 atm * (5 L - 2 L) = 3 atm * 3 L = 9 atm·L = 15 J (1 atm·L = 101.325 J)

Work done (W) = PΔV = P(V_final - V_initial) = 5 atm * (5 L - 2 L) = 15 L·atm.

Work done (W) = P * ΔV = 2 atm * (2 L - 4 L) = 2 atm * (-2 L) = -4 L·atm (work done on the gas is positive).

Work done (W) = P * ΔV = 200 kPa * (2 L - 5 L) = 200 kPa * (-3 L) = -600 J (work done on the gas).

Work done = nRT ln(Vf/Vi) = 1 mol × 8.31 J/mol·K × 300 K × ln(20/10) = 1660 J.

Work done (W) = nRT ln(Vf/Vi) = 1 mol * 8.314 J/(mol K) * 300 K * ln(20/10) = 2.5 kJ.

Work done W = nRT ln(Vf/Vi) = 1 * 8.314 * 300 * ln(20/10) = 600 J.

Work done (W) = F × d = 50 N × 3 m = 150 J.

Work done (W) = Force × Distance = 10 N × 5 m = 50 J.

Work = Force * Distance * cos(θ) = 15 N * 3 m * cos(0°) = 45 J.

Work done = Force × Distance = 15 N × 4 m = 60 J

Ampere's Law relates the magnetic field around a conductor to the current flowing through it.

The Conservation of Momentum states that in a closed system, the total momentum remains constant if no external forces act on it.

Gravitational force is inversely proportional to the square of the distance between the centers of two masses.

Length is a base quantity in the SI system, while force, energy, and pressure are derived quantities.

Meter is a base unit in the SI system, while liter, newton, and joule are derived units.

Acceleration is defined as the change in velocity per unit time, so its dimensional formula is [M^0 L^1 T^-2].

Energy has the dimensional formula [M^1 L^2 T^-2], as it is defined as work done, which is force times distance.

Frequency has the dimensional formula [M^0 L^0 T^-1].

The unit of pressure is Pascal (Pa), which is equivalent to N/m².

The law of conservation of energy states that energy cannot be created or destroyed, but it can be transformed from one form to another.

Iron is a ferromagnetic material, which means it can be magnetized and retains its magnetic properties.

Iron is a ferromagnetic material, which means it can be magnetized and has a high magnetic permeability.

Iron is considered a ferromagnetic material, which can be magnetized and retains its magnetism.

Angle is a pure number and has no dimensions, while force, energy, and pressure all have dimensions.

Velocity is a vector quantity as it has both magnitude and direction, while mass, temperature, and speed are scalar quantities.

Thermal conductivity is a measure of a material's ability to conduct heat; it varies with material type.

A convex lens can form both real and virtual images depending on the position of the object relative to the focal point.

The law of conservation of energy states that energy cannot be created or destroyed, but it can be transformed from one form to another.