How Rocket Engines Operate The relationship of force, weight, and mass is defined by Newtons law of universal gravitation. It states that,Every object
{"Image DocumentName": "How Rocket Engines Operate", "Image ImageDescription": "The relationship of force, weight, and mass is defined by Newton\u2019s law of universal gravitation. It states that, Every object in the Universe attracts every other object with a force directly along the line of centers for the two objects that is proportional to the product of their mass and inversely proportional to the square of the separation between the two objects. Expressed by the equation F = M1M2/r2. The relationship of force, weight, and mass is defined by Newton s law of universal gravitation. It states that, Every object in the Universe attracts every other object with a force directly along the line of centers for the two objects that is proportional to the product of their mass and inversely proportional to the square of the separation between the two objects. Expressed by the equation F = M1M2/r2. F represents the force in pounds. M1 and M2 are masses of the two objects. r is the separation between the two. The measured gravitational acceleration at the Earth s surface is found to be about 32.2 feet per second/per second. The gravitational force of a symmetrical sphere acts as if its entire mass was focused at its center. Since Earth approximates such a sphere, the distance between the Earth and a body upon or near its surface is equal approximately to the Earth s radius. The mass of the Earth, M1, remains constant. From these values the force of the Earth s gravity, which corresponds to the weight of body M2, is found to be 32.2 pounds-force for each unit of mass. This ratio is called the gravitational conversion constant.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}