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Rotation

~600 answered questions
Parent Category: Mechanics
Classical mechanics doesn't just describe how an object's position behaves under external influences, but also how its orientation behaves. Using the same principles found in Newtonian mechanics, laws and relations governing rotation can also be derived. Please direct all your questions about moments of inertia, angular velocity, angular momentum, centripetal force, centrifugal force, torque, and spin here.
Dyno Rpms is revolutions per minute. How many times the engine turns a complete cycle. Torque is measured at the rear wheels(if were talking about a rear wheel drive car). Torque is the true power of an engine. If you have alot of horse power and low torque, the working power of the engine underload…
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The answer to this may come from a science concept called a "frame of reference" in our physics class. The best examples are people riding in vehicles. We don't notice that we're sailing along at freeway speeds because our frame of reference is the car. We're moving at the same speed it is. The eart…
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60 revolutions per minute is one revolution per second. 1 light second is the distance light travels in one second. What this means is that points on this hypothetical disk's perimeter would need to travel at the speed of light to satisfy your conditions. This cannot happen for anything that has m…
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Velocity is a physical vector direction quantity both magnitude and direction needed to define it.
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Centripetal Force is the force directed towards the center of an object's circular path. It makes a body follow a curved path. Sir Isaac Newton stated: "A centripetal force is that by which bodies are drawn or impelled, or in any way tend, towards a point as to a center."
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Answer By Karl Brauer, Editor in Chief, Edmunds.com While horsepower is often considered when shopping for a vehicle, what about that "other" engine rating: torque? Specifically, what are the differences between horsepower and torque? If you flip through the pages of any automotive publication,…
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Usually angles are measured in degrees, 360 degrees being full circle. There are also radians, full circle being 2 x PI
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velocity= time / displacement velocity also includes directionsex: 10 m/s due north(this would be the displacement.)Velocity is how fast an object is going WITH DIRECTION.The S unit for velocity is m/s with direction. Ex. v= 120 miles south / 3 hrs. v= 40 mi/hr SOUTH.Velocity has to have direction.…
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Center of gravity toward the center of the body absorbs. Centrifugal force away from the center of the object. Centripetal force is real. Centrifugal force is made up and doesn't exist.
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By first spinning with the Arms extended, and then bringing the arms close to your body, you will spin faster. This is due to the conservation of angular momentum and energy. The equation for the amount of angular energy is (1/2)(I)(W^2) I is inertia W is angular velocity (pretend the W is lower…
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Torque is difficult value to estimate. Especially, for material like stainless steel. There are many factors that effect the value of torque. One of the biggest variable is friction. Since this is almost impossible to control in "field" applications, it is crucial take this into consideration when d…
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Large breed of dog, usually a poodle.
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No. Speed is the magnitude of velocity and acceleration is the change of velocity in time.
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In my every day's life. When I walk I have to push the earth backward so as to get a movement in forward direction. This is what we call Newton's third law. "For every action there will be equal and opposite reaction"
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AnswerAt the equator the earth spins at 0.0005 Meters per second. Here's a bit more data -- you can do the math. ;-)•How fast is the Earth spinning? 0.5 km/sec •How fast is the Earth revolving around the Sun? 30 km/sec •How fast is the Solar System moving around the Milky Way Galaxy? 250 km/se…
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Answer It is the force which keeps a body moving in circular motion. Answer Centripetal force is the force that acts opposite to cetrifugal force. Centripetal force is a real force. Centrifugal force is a pseudo-force
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Rule: Magnitude of acceleration = Change of velocity / Time interval In linear motion, magnitude of acceleration is the measurement of change in speed in speed per unit time. For example: A car reaches a speed of 20 miles per second in 4 seconds, the magnitude of acceleration is 5 miles per second.…
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A rotating object's moment of inertia times its angular velocity.
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Saturn rotates in about 10.57 hours.
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You can read the Wikipedia article on torque, look for other online articles about torque, or read a physics school book - look for the chapters about rotational movement. It is important that you first understand the physics of linear motion - especially Newton's laws of motion, since this is very …
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Archimedes work on levers brought about the concept of torque. He used levers and pulleys to illustrate mechanical advantage. Torque and moments make us understand the mechanical concepts.
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Centripetal force is that which bind you toward the center when you are tilted at turning.
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The Coriolis effect is zero at the equator because the winds don't have to "bend" due to the shape of the earth and the way the earth rotates. The winds can flow straight. If you were at the poles where the force is at its maximum, almost every weather system "bends" and "bends strongly" because th…
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The centrifugal force is an apparent (ficticious) force, caused by a rotational movement. The amount of the apparent centrifugal force can be calculated by the same formula as the amount of the real centripetal force.
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Think of it this way. Let's say you have a yo-yo and let it unwind. Then you start swinging it around your head in a circle parallel to the ground. The force that keeps the yo-yo in its circular path is the centripetal force (centripetal = away from the center). Without it, the yo-yo would not conti…
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Answer I believe the Coriolis Effect describes the direction that water swirls down the drain or in the toilet. North of the Equator, the water swirls counter-clockwise; south of the Equator, the water swirls clockwise. Answer The Coriolis Force is not a real force but is a matter of positio…
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A moving object with no force acting on it continues moving in a straight line. It takes a force to bend it away from a straight path. As long as an external force acts on the object and continues to point toward the same single point, the object will move in a circular path, and the force is cal…
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Nothing - it looks like some kind of abbreviation instead of an idiom.
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Hi. Regret I can't answer your question, but I'm looking for a spare part (internal door surround) for my Cooktronic 719. Have you had any success with your own search? Regards Jim j.mackay@homecall.co.uk I also can not answer your question, but if Jim reads this I have a Cooktronic 719, that i woul…
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I believe that any particle in linear motion must also have some angular momentum because all particles have spin. In the case of a photon the spin, wavelength and angular momentum all vary with the relative linear velocity. So in my point of view time itself is the ratio between relative linear and…
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Centripetal force is = mass * velocity square divided by radius
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The rotation is simply too slow to be felt directly. People cannot feel motion in a straight line at a constant speed, but we can feel accelerations. Rotation involves a change of direction. That is an acceleration in scientific terms.However, the change of direction is too gradual to feel.
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Hematite is a type of iron ore, if you grind it into a fine powder it makes the natural pigment ochre which is used by native people in southern and east Africa (mixed with fat) to adorn their bodies. Hematite can also be used to make a form of black shiny jewelery.
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True ,velocity is a vector quantity ,it is specified by a magnitude and direction.
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"Center-seeking" or "directed to the center" is the definition of centripetal.
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Answer is.. Heavy. Indeed. Good news though, the extra weight will actually slow the speed at which the earth rotates so much... eventually we will start spinning backwards and all travel back like in the 1978 movie superman - a point in time where we still had polar ice caps!
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Saturn spins faster then earth
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Friction can be increased by using rough surfaces, or by using materials like rubber that have alot of friction. some methods are:BY GIVING SPECIAL SHAPES TO SHOESBY SPREADING SANDBY USING SPIKES IN SHOES
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A torque sensor, or torque meter, is a device that measures the torque on rotating systems, usually wheels. Torque, in this case, is the twisting force that causes rotation, such as that applied when you pedal a bicycle.
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approx 350 cubic inch displacement That is incorrect it is 346ci
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80 meters. Since the only force on the car is centripetal force then: Fc = mac ac = v2/r Fc = (mv2)/r Solve for r r = (mv2)/Fc r = (1200)(20)2/(6000) r = 80m (See my work in the link below.)
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Horsepower - power over time, continuously used. You can only generate what you need or use. Torque- Power on hand, waiting for demand. Like a weight hanging on stick. It is there when you need it. Torque gets you going and Horsepower keeps you rolling. AnswerYou really should be asking, "What i…
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Angular momentum is an expression of an objects mass and rotational speed. Momentem is the velocity of an object times its mass, or how fast something is moving times how much it weighs. Therefore angular momentum is the objects mass times the angular velocity where angular velocity is how fast som…
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When the trajectory of an object travels on a closed path about a point -- either circular or elliptical -- it does so because there is a force pulling the object in the direction of that point. That force is defined as the CENTRIPETAL force. It has not been more simply, or directly stated than b…
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The centrifugal force is a high centrifical force generated by the high speeds in a centrifuge. A simple example is the force that pushes clothes to the side of the drum in a newer clothes washer's spin cycle. These H.e. models spin faster than the older ones.
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Force is given by Newton's second law: F = ma where F is the force, m is the mass and a is the acceleration. F=2000kg x (25 m/s)2 / 80 meters 15,625n
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Think of it as the difference in moment of inertias for two solid cubes. Calculate the moment of inertia of a solid cube with dimensions equal to the inner dimensions of your hollow cube. Then calculate the moment of inertia of a solid cube with dimensions equal to the outer dimensions of your hollo…
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No. Buoyancy depends only on total volume of water displaced and the mass of the object, not the shape of the displacement. However, if the change in the shape affects the volume of water displaced, then the bouyancy of the object is affected. Scuba divers with wet suits know that the volume of the…
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Centrifugal force is fictitious force, peculiar to circular motion, that is equal but opposite to the centripetal force that keeps a particle on a circular path For example, when you are driving and you come across a tight curve, if you go too fast, you will go off the road because of your momentum …
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Sure, if they're applied at different distances from the center of rotation.
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dependent variable is the thing you measure in an experiment and a independent is the one you change.
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Frequently, nausea.
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the rotation of the earth is causing day time and night time
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Because any time anybody's foot is touching it, the foot is pushing it backwards.
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The linear (tangential) speed of a point on a spinning circle is (angular speed of the spin) x (radius of the circle). Note that this only works if the angular speed is in units of radians/time . To convert degrees to radians, multiply by (pi)/180 ... about 0.01745 .
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linear velocity is a change of speed in a linear fashion. Angular speed is the rate of change of angle with respect to time. These two are convertible in a case of a circle motion. the lenght of an arc is l = RO. where O is the angle. hence v= l/t and therefore v=RA where A = O/t.
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Angular momentum in the cloud of stuff from which it formed was conserved, meaning that the Earth was formed spinning. Since there's no substantial force acting on it to make it stop, it continues to spin ... slowing down ever so gradually, from the point of view of a human lifetime, because of t…
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40 seconds/15 revolutions = 22/3 second per revolution
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No.
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It's a bit complicated to list here so please follow the related link below.
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Rotational inertia is sometimes called spin. It involves the movement of a mass around an axis. This moving mass will have some measure of kinetic energy that is due to the fact that it is spinning. The variables are the shape and the mass of the object, the way the mass is distributed within the ob…
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The atmosphere
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If you take any energy off of the wheel, then it won't spin at 5 RPM any more. And if you keep taking energy from it, then pretty soon it'll stop spinning. You can get just as much energy out of it as it took to spin it up to 5 RPM.
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(Any unit of length) x (any unit of force) is a perfectly good unit of torque. You may need to use a few conversion factors if you want it to work together with anybody else's normal system of units, but it definitely has dimensions of torque.
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Momentum is the product of mass and velocity p=mv. Torque is vector energy T=fxd=fdsin(fd), the vector analogy of scalar energy, work W=f.d= -fdcos(fd).
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You could have 'newton-centimeters', or 'newton-inches', or 'pound meters' etc., but you can't have 'newton pounds'. Torque is (a distance) x (a force), but 'newton pound' is (force) x (force). Whether or not that has any physical significance at all, it's surely not torque.
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There are 4 bolts that hold the seat on that need to come off. First, you'll need a Phillips head screwdriver to remove two plastic panels, one of which is by the gear shift lever, and the other by the carb. With these panels removed, you'll have access to the front two (10MM) seat bolts. The one on…
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Audio CD players read their discs at a precise, constant rate (4.3218 Mbit/s of raw physical data for 1.4112 Mbit/s (180.6 kB/s) of usable audio data) and thus must vary the disc's rotational speed from 8 Hz (480 rpm) when reading at the innermost edge, to 3.5 Hz (210 rpm) at the outer edge. 48…
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The clothes have a centripetal force (the walls of the machine provide this) which pushes them towards the center of the tub, not out of it. But the water lacks a centripetal force (it fits through the holes in the walls of the wash tub) to keep it from leaving the path of circular motion, so theref…
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If your talking about NFL then We spin footballs to minimize the effect of air resistance on the ball. That makes it go further and follow a more straight path. Its got something to do with angular momentum
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With that amount of information, you can't. You'd also need to know what effect that torque had on the object ... things like how its rate of rotation changed, its shape (so that you could determine its moment of intertia), etc. In other words, in addition to the net torque on the object, you al…
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23hours 56minutes and about 4seconds
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It is a ficticious force, which seems to push things outward from the center, when objects move in circular movement - or, more generally, in a curve.
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if you are riding in a car and you toss up a baseball, the baseball will come right back down no matter how fast the car is going. The same thing applies to the bullet, the earth adds velocity to the bullet. The difference is that the earth is not moving at the same speed everywhere. Near the poles,…
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No, because gravity has to do with mass, not rotation. If it weren't for gravity, the rotation would cause people to fly off into space. Every object is supposed to go in a straight path forever, unless countered by another object. For example: If you have a a circle, with a small opening (_) (but…
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We need a length or distance measurement here. The unit is meter or a part of it, like centimeter, millimeter.
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torque = force x Radius of the armature  
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limited i think by the intrinsic ability of a rotating object to 'stay together'; i have the same problem when trying to determine the maximum rate at which a spinning rotor can rotate in a vacuum when there are no forces to stop it...for eg. in a suspended magnetic field. it's complex, but i think …
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Because we are moving along with the earth, and there is no relative motion between the earth and us. If we are seated on a train and watching the scenery go by, we don't "feel" the motion of the train as it sails down the track at freeway speeds (the jostling of the train aside). Same thing. It's a…
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Whirlpool rotates counter-clockwise in the N.H, clockwise in the S.H
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A wheel, connecting rotating gears.on the other hand when the earth is move to its own axix
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Torque is a movement force. Moment is a static force. Torque is often presented as Nm/revolution and moment is typically presented as Nm. The words "torque" and "moment" (of force) mean the same. However, "torque" tends to be used when there is an axle or pivot to be turned around, while "moment…
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Angular displacement is measured in angles, usually degrees or radians. Especially when the unit radian is used, this unit is usually considered to be adimensional, since the radian is defined by the division (ratio) of two lengths: the length of an arc divided by the radius.
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Depends on the engine that is turning 1,000 rpm's. A larger engine develops way more horsepower than a small engine at 1,000 rpm's.
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One big reason is because centrifugal force doesn't explain circular motion, and the other one is because centrifugal force doesn't even exist. I can't think of a way to make an object move in a circle by pulling it from outside of the circle.
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v=Wr w=angular speed
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Rotation can refer to the act of movement or path around an axis, such as a heavenly body or a wheel. It can also refer to a regularly recurring succession, like the rotation of guards outside Buckingham Palace.
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By applying the small force farther from the center of rotation. That's exactly the reason why you need a longer wrench to crack the nut off of the bolt when it's stuck. It's also exactly the reason why the child sits farther from the pivot of the see-saw than her father does.
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The factors that affect the magnitude of torques are three: the force F, the displacement D and the sine of the angle A between them. Torque T= FD sin A. In Nature, variables are quaternions, and consist of a scalar and a vector part. This fact has not made its way into science and physics yet. It …
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Centrifugal force is the outward force of a rotating object. The opposite force is the centripetal force which maintains the object in it's rotational position. In the case of an orbiting satellite it's rotational speed (revolutions per time period) creates the centrifugal force required to overc…
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turning effect of body
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If you are just sticking a piece of pipe on the handle so you (as the user) can apply more force to the tool, no, it won't change the ability to get a desired torque on a fastner. And adding an extension between the socket and the drive head of the wrench (a so-called socket extension) to extend the…
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Almost all of the material that formed the Solar system revolved around the Sun in one direction. This represents the conservation of angular momentum when the material contracted to form the Sun and its planetary disk. Since then, collisions and localized gravity have created exceptions to the gene…
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In order to calculate that quantity, you would need a number to use for the Earth's mass.
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almost exactly 1 revolution per day
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As a noun, an angular is a bone in the base of the lower jaw of many birds, reptiles and fish.
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The terminology is, unfortunately, somewhat confusing; what I learned to call "torque" in a U.S. physics high-school book - a product of force x distance - is called "moment" in some other countries. Then there is the "moment of inertia", which is really rotational inertia, and a quite different con…
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A rotation in Vollyball is when you win the point back and swap positions. I know that sounded wrong.For example:If you served the ball over the net, and they, of course, hit it back over and you missed, they'd win the point back and rotate in a clock-wise direction.If they served it over, and you h…
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The simple scalar method of calculation is to integrate the square of the radius (r) across dm, where m is the mass. (Integral r2 dm is the equation, but we don't have an integral sign here.) Use the link to Wikipedia for the rest of the information and expansions on the "basic" equation.
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