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What is the force called that keeps an object moving in a circle?
The force that keeps an object moving in a circle or an arc is called a centripetal force. Gravity is an example of centripetal force that keeps a satellite in a circular orbit around a planet. Another example is when you ride on a merry-go-round - the rotating play structure imparts a centripetal force upon you, forcing you to also travel in a circle.
How must the net force depend on the speed of the moving object in order to obtain uniform circular motion?
The force required to keep a body to be in a uniform circular motion is known as centripetal force means centre seeking force. This centripetal force is directly proportional to the square of the speed of the particle.
What is bernoullis principle?
The relationship between the velocity and pressure exerted by a moving liquid is described by the Bernoulli's principle: as the velocity of a fluid increases, the pressure exerted by that fluid decreases.Airplanes get a part of their lift by taking advantage of Bernoulli's principle. Race cars employ Bernoulli's principle to keep their rear wheels on the ground while traveling at high speeds.Bernoulli's principle, physical principle formulated by Daniel Bernoulli that states that as the speed of a moving fluid (liquid or gas) increases, the pressure within the fluid decreases. The phenomenon described by Bernoulli's principle has many practical applications; it is employed in the carburetor and the atomizer, in which air is the moving fluid, and in the aspirator, in which water is the moving fluid. In the first two devices air moving through a tube passes through a constriction, which causes an increase in speed and a corresponding reduction in pressure. As a result, liquid is forced up into the air stream (through a narrow tube that leads from the body of the liquid to the constriction) by the greater atmospheric pressure on the surface of the liquid. In the aspirator air is drawn into a stream of water as the water flows through a constriction. Bernoulli's principle can be explained in terms of the law of conservation of energy (see conservation laws, in physics). As a fluid moves from a wider pipe into a narrower pipe or a constriction, a corresponding volume must move a greater distance forward in the narrower pipe and thus have a greater speed. At the same time, the work done by corresponding volumes in the wider and narrower pipes will be expressed by the product of the pressure and the volume. Since the speed is greater in the narrower pipe, the kinetic energy of that volume is greater. Then, by the law of conservation of energy, this increase in kinetic energy must be balanced by a decrease in the pressure-volume product, or, since the volumes are equal, by a decrease in pressure.
What happens to an object that is moving in a circle if the centripetal force is removed?
The centripetal force is what draws the object towards the centre. The centrifugal force is what draws the object away from the centre. Generally when one speaks of centrifugal force, one means only that it takes the centripetal force to keep moving the object out of its straight direction of travel. If you remove the centripetal force in such an example, such as when the object is in a circular orbit around another body, then the result will be that the orbiting body will continue traveling in a straight line at a tangent to the circular path it had been following.
How can you show that force certainly acts on a particle moving along circular path?
If no force acts on a particle, that particle will either be motionless, or will move in a straight line; this follows from Newton's laws of motion. When a particle is moving in a circular path, the direction of its motion is constantly changing, and to change the direction of motion requires force. We know that force equal mass times acceleration, which is the basis of all physics, as originally stated by Newton. So if a mass is being accelerated, then force is being applied. That is an inescapable conclusion. And only acceleration can change the direction in which a particle moves.
Does the Archimedes principle hold in a satellite moving in a circular orbit?
Yes, the Archimedes principle applies in a satellite moving in a circular orbit. The principle states that the buoyant force acting on an object is equal to the weight of the fluid displaced by the object. In the case of a satellite in orbit, the principle still holds as the satellite is displacing the atmosphere and experiences a reduced weight due to its orbital motion.
What is the direction of the centripetal force acting on a satellite that is in uniform circular motion around Earth?
The centripetal force acting on a satellite in uniform circular motion around Earth is directed towards the center of Earth. This force is necessary to keep the satellite moving in a circular path instead of following a straight line.
What is an example of Circular acceleration?
a satellite in orbit; it is moving at constant speed but is accelerating outward in circular acceleration, balanced by gravity acceleration (centripetal force).
Which of following are not examples of centripetal acceleration?
A car moving around a curve on a road. A rock being swung in a circular path on a string. A rocket moving away from Earth into space. A satellite orbiting around a planet. The rocket moving away from Earth into space is not an example of centripetal acceleration because centripetal acceleration is directed towards the center of the circular path, whereas the rocket moving away from Earth is not following a circular path.
The space shuttle releases a satellite into a circular orbit 600 km above the Earth How fast must the shuttle be moving relative to Earth when the release occurs?
This depends on the type of shuttle and its orbit. The speed can differ from satellite to satellite, therefore a definite answer can not be given about the exact speed of shuttle while it releases satellite.
A force that holds a moving object in a circular path is called the?
A force that holds a moving object in a circular path is a "centripetal force". In the case of an orbiting planet, moon, artificial satellite etc., the mutual force of gravitation between the orbiting body and the central body is the centripetal force.
Is the satellite accelerating?
Yes, the satellite is accelerating because it is revolving around our earth and in a circular motion so its velocity changes every second so it is accelerating.A2. No, the satellite is not accelerating. Acceleration is defined as the rate of change of velocity. But, its velocity is constant. The centrifugal effect is exactly balanced by the pull of gravity (assuming a circular orbit).But a nice question. The net acceleration between these forces is zero.
What is tangential motion?
Tangential motion is motion that occurs perpendicular to the radius of a circular path. It represents the speed or direction change of an object moving in a circular path. Tangential motion is often seen in circular motion scenarios, like a car going around a curve or a satellite orbiting around a planet.
What is another word for an artificial object moving around the earth?
Satellite
What did Archimede discover?
Archimedes discovered and invented several things throughout his life:Archimedes' principle (one of several apsects involving buoyancy).The Archimedean screw (a fluid-moving device).The block-and-pulley (using mechanical advantage to move loads with less effort).Inventing the odometer (a device that measures distance travelled by a vehicle).The relation of a circle's area to its radius (given by a mathematical relationship and a basic tool of modern mathematics).
Uniform circular motion deals with objects moving with what speed in a circular path?
When an object is moving in a uniform circular motion while traveling in a circular path, this means it has a constant speed. When an object is moving in a circular path, this indicates it is constantly being pulled towards the center of the circle.
Why does a body becomes weightless in an artificial satellite?
for the circular motion of a satellite a centripetal force is requid. these force is supplied by the gravitional force between the earth and satellite this is trueall objects in the satellite is zero ie, the object in a satellite feel weightlessness
