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phymatter
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if the Earth stops rotating , what will happen to the apparent value of g on its surface ?
Drakkith said:The force of gravity would be unaffected I believe. Without the rotation you might be able to measure a slightly higher amount of G on stationary objects on the ground since the surface isn't rotating anymore, but the amount would probably be negligible.
Drakkith said:The force of gravity would be unaffected I believe. Without the rotation you might be able to measure a slightly higher amount of G on stationary objects on the ground since the surface isn't rotating anymore, but the amount would probably be negligible.
The Earth's rotation affects g in two ways. Directly, g includes a centrifugal acceleration term. This will vanish should the Earth stop rotating, thereby increasing the apparent value of g except at the poles. Indirectly, the Earth's rotation makes the Earth have a shape of an oblate spheroid. The Earth would presumably relax to a spherical shape should the Earth stop rotating. This would bring equatorial regions closer to the center of the Earth but make polar regions move further from the center of the Earth.phymatter said:if the Earth stops rotating , what will happen to the apparent value of g on its surface ?
Earth's rotation does not directly affect gravity. Gravity is a force that is determined by the mass and distance between two objects, such as the Earth and an object on its surface. However, the Earth's rotation does play a role in the creation of centrifugal force, which can counteract the force of gravity at the equator and make objects feel slightly lighter.
The Coriolis effect is the apparent deflection of objects in motion on the Earth's surface due to the Earth's rotation. This is caused by the rotation of the Earth making it seem like the object is moving in a curved path, when in reality it is moving in a straight line. This effect is strongest at the poles and has little to no impact on objects at the equator.
The Earth rotates at a speed of approximately 1,037 miles per hour at the equator. This rotation creates the day and night cycle, as well as the Coriolis effect. It also causes the apparent movement of the sun and stars across the sky. However, the rotation of the Earth does not have a significant impact on daily life as we are used to its effects and it is constant.
The rotation of the Earth plays a major role in determining weather patterns. The Coriolis effect causes winds to curve and creates high and low-pressure systems, which are important for the formation of storms and other weather events. The rotation of the Earth also creates the trade winds, which impact global weather patterns and ocean currents.
The Earth's rotation is measured and monitored using various techniques and technologies such as satellite laser ranging, Very Long Baseline Interferometry (VLBI), and Global Navigation Satellite Systems (GNSS). These methods allow scientists to track the Earth's rotation and any changes in its speed or direction. The most accurate method currently used is VLBI, which measures the rotation of the Earth using radio signals from distant quasars.