For example you have a box of apples. The gross mass is the mass of the box and apples, the net mass just the apples.
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Gross mass refers to the total weight of an object including its packaging or container, while net mass refers to the weight of the object alone without any packaging or container. Net mass is the actual weight of the object, whereas gross mass includes the weight of the object plus any additional materials.
Gross oil refers to the total volume of oil produced, while net oil refers to the amount of oil that a company or entity has the legal right to keep after royalties, taxes, and other deductions have been accounted for. Net oil is what a company can actually realize as revenue.
Net thrust in a ramjet engine is the actual useful thrust generated for propulsion, while gross thrust is the total thrust including the contributions from ram pressure. The net thrust is the difference between the gross thrust and the drag of the engine itself. The net thrust determines the actual propulsion force available for moving the aircraft forward.
Gross weight refers to the total weight of a product or item including packaging, while net weight refers to the weight of the product itself excluding any packaging or additional materials. Net weight is the weight you actually pay for when buying a product, while gross weight includes everything.
Acceleration is directly proportional to the net force acting on an object. This relationship is described by Newton's second law of motion, which states that the acceleration of an object is directly proportional to the net force applied to it and inversely proportional to its mass.