| 单词 | angular velocity |
| 例句 | In more technical terms, if the wheel's angular acceleration α is large for a long period of time t , then the final angular velocity ω and angle of rotation θ are large. College Physics for AP Courses 2015-08-12T00:00:00Z Show that the speed of the particle is proportional to the angular velocity. Calculus, Volume 3 2016-03-30T00:00:00Z In the real world of sport, the point of inception of every vector such as displacement, velocity, linear momentum linear acceleration, force, and angle, angular velocity, angular momentum, angular acceleration and torque, also matter. Will Women Play Major League Baseball? (And Not Just on TV) 2016-09-22T04:00:00Z A commission said that failure was caused by the improper installation of three angular velocity sensors. Russian satellite burns up after rocket failure 2014-05-16T04:00:00Z Close registration between the gears ensured that both hindlegs moved at the same angular velocities to propel the body without yaw rotation. [Report] Interacting Gears Synchronize Propulsive Leg Movements in a Jumping Insect 2013-09-12T17:57:21.983Z The kinematics of rotational motion describes the relationships among rotation angle, angular velocity, angular acceleration, and time. College Physics for AP Courses 2015-08-12T00:00:00Z He says the sudden changes probably occur when a patch of molten outer core temporarily sticks to the mantle, causing a steep change in angular velocity. Stutters in Earth’s spin changed length of days slilghtly 2013-07-15T18:51:18Z This is the mixture of the moment of inertia and angular velocity. Quantum Computing Simplified 2012-09-25T15:15:03.423Z The optical apparatus generally consists of a mirror mounted on an axis parallel to the axis of the earth, and rotated with the same angular velocity as the sun. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" 2012-04-25T02:00:53.567Z Now consider the resultant angular velocity at any point of the fluid, and draw a short line through that point in the direction of the axis of rotation. Lord Kelvin An account of his scientific life and work 2012-04-06T02:00:32.097Z An object that has a large angular velocity ω , such as a centrifuge, also has a rather large angular momentum. College Physics for AP Courses 2015-08-12T00:00:00Z The angular velocities of the two are, therefore, in the same ratio as their diameters, or two to one, and the velocity ratio is also two to one. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z As imagined by Laplace, this mass contracted owing to loss of energy by radiation, and so increased its angular velocity until it assumed a lenticular shape…. Astronomy: The Science of the Heavenly Bodies 2012-03-17T02:01:02.630Z By adjusting the right ascension of the plane ABC and rotating the axis with the angular velocity of the sun, it follows that BC will be the direction of the solar rays throughout the day. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" 2012-04-25T02:00:53.567Z The angular velocity of rolling, and therefore the angular velocity of the cylinder, was proportional to the speed of the part of the disk in contact with it, that is, to y. Lord Kelvin An account of his scientific life and work 2012-04-06T02:00:32.097Z After the collision, the rotational kinetic energy can be found because we now know the final angular velocity and the final moment of inertia. College Physics for AP Courses 2015-08-12T00:00:00Z In 1803, after twenty years of observation, William Herschel discovered that some of these couples were revolving around each other with various angular velocities. Joseph Smith as Scientist A Contribution to Mormon Philosophy 2012-03-12T03:00:27.817Z It is obvious that energy could readily be applied to the pendulum system in such a degree as to cause it to rotate with considerable angular velocity about the axis of suspension. The Energy System of Matter A Deduction from Terrestrial Energy Phenomena 2011-12-21T03:00:36.570Z The angular velocity of the moon’s motion in its projected great circle is much greater than that of the sun in the ecliptic. Astronomical Lore in Chaucer 2011-10-13T02:00:42.860Z Any motion of a rigid body can be reduced to a screw motion about a certain line, i.e. to an angular velocity ω about that line combined with a linear velocity u along the line. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 6 "Geodesy" to "Geometry" 2011-09-19T02:00:10.473Z Explain the effect of both actions on their angular velocities. College Physics for AP Courses 2015-08-12T00:00:00Z Both move round in the same direction, but the angular velocity of the hour-hand is twice as great as that of the sun. The Seven Follies of Science [2nd ed.] A popular account of the most famous scientific impossibilities and the attempts which have been made to solve them. 2011-06-30T02:00:34.290Z The effect of a direct and continuous influx such as we have assumed would inevitably be an increase in the angular velocity of the system. The Energy System of Matter A Deduction from Terrestrial Energy Phenomena 2011-12-21T03:00:36.570Z Similarly, if a body is rotated round a vertical axis, we perceive only angular acceleration and not angular velocity. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 7 "Equation" to "Ethics" 2011-02-27T03:00:31.973Z His windup and delivery had been captured in three dimensions, with enough detail to calculate the stress on his wrist and the angular velocity of his shoulders. From the ?Avatar? Playbook, Pro Teams Adopt 3-D Imaging 2010-10-02T19:37:00Z Figure 23.21 A generator with a single rectangular coil rotated at constant angular velocity in a uniform magnetic field produces an emf that varies sinusoidally in time. College Physics for AP Courses 2015-08-12T00:00:00Z It is an elementary principle of mechanics that this force varies directly as the product of the distance of the moving body from the centre of motion into the square of its angular velocity. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 7 "Arundel, Thomas" to "Athens" The angular velocity of the system would rise and fall accordingly. The Energy System of Matter A Deduction from Terrestrial Energy Phenomena 2011-12-21T03:00:36.570Z The instrument consists of a recording cylinder rotated at a uniform angular velocity by clockwork controlled by a fan governor, and pneumatic signal, constructed thus. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 "Chitral" to "Cincinnati" Our angular velocity with respect to them can be checked while the screamer is going; they will know which direction we're moving, if we're moving at an angle. Hanging by a Thread Back emf is zero when the motor is not turning, and it increases proportionally to the motor’s angular velocity. College Physics for AP Courses 2015-08-12T00:00:00Z If M is the central mass, n the angular velocity, and a the distance, the balance of the two forces is expressed by the equation an� = M/a�, whence a�n� = M, a constant. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 7 "Arundel, Thomas" to "Athens" One of the troublesome features of this exercise is the difficulty of rotating two tubes of different diameters with the same angular velocity, so as not to twist the joint. Laboratory Manual of Glass-Blowing The recording arrangement consists of a series of disks, one for each plug, mounted on one axle and rotating at a high angular velocity. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 "Chitral" to "Cincinnati" He supposes that all parts of the nebulous spheroid when it filled Neptune's orbit, had the same angular velocities. Essays: Scientific, Political, & Speculative, Vol. I We define angular velocity ω as the rate of change of an angle. College Physics for AP Courses 2015-08-12T00:00:00Z Thus it can be seen that the velocity of the rotating Aether will be greatest at the surface of the sun, but its angular velocity will decrease the further the medium recedes from the sun. Aether and Gravitation It was also pleasant to prove by mathematics, and verify by experiment, that the angular velocity of a reflected beam is twice that of the mirror which reflects it. Fragments of science, V. 1-2 The alteration of the energy of the system may be expressed by multiplying the relative rotation by the change in the earth's angular velocity. Time and Tide A Romance of the Moon Thus the central parts will have small angular velocities, while there will be increasing angular velocities of parts increasingly remote from the centre. Essays: Scientific, Political, & Speculative, Vol. I The greater the rotation angle in a given amount of time, the greater the angular velocity. College Physics for AP Courses 2015-08-12T00:00:00Z Descending, they gained in angular velocity as they lost height. Space Tug The angular velocity of the revolving field is remarkably uniform. The New York Subway Its Construction and Equipment This 30-degree-per-second angular velocity corresponded to the professors' measured angular velocity. The Report on Unidentified Flying Objects Now this conclusion assumes, like that of M. Babinet, that all parts of the nebulous spheroid had equal angular velocities. Essays: Scientific, Political, & Speculative, Vol. I A larger angular velocity for the tire means a greater velocity for the car. College Physics for AP Courses 2015-08-12T00:00:00Z Let L be the couple, measured in foot-pounds, which the dynamo must exert in order to drive the car, and w the necessary angular velocity. Scientific American Supplement, No. 388, June 9, 1883 If the motion of the metal be in the same direction, but the angular velocity of its parts relative to the pole of the magnet different, then currents are produced. Experimental Researches in Electricity, Volume 1 Either the orbit could not be circular, or else the angular velocity could not be constant about any point whatever. Kepler The tacit assumption usually made is that the different parts of a nebulous ring have the same angular velocities. Essays: Scientific, Political, & Speculative, Vol. I The direction of the angular velocity is clockwise in this case. College Physics for AP Courses 2015-08-12T00:00:00Z Then E1 is proportional to the product of the angular velocity, and a certain function of the current. Scientific American Supplement, No. 388, June 9, 1883 All these in fact are variations of one simple condition, namely, that all parts of the mass shall not move in the same direction across the curves, and with the same angular velocity. Experimental Researches in Electricity, Volume 1 The angular velocity is not quite constant about E, the equant or empty focus, but the difference could hardly have been detected in Kepler’s time. Kepler Simultaneously the drawing in of outer parts caused motions ending in rotation round a centre with various angular velocities. Essays: Scientific, Political, & Speculative, Vol. I It is also useful to express ac in terms of angular velocity. College Physics for AP Courses 2015-08-12T00:00:00Z The angular velocity of the axle corresponding to a speed of seven miles an hour, is 84 revolutions per minute. Scientific American Supplement, No. 388, June 9, 1883 It is of 100 indicated h.p., and its normal angular velocity is 100 revolutions per minute. Scientific American Supplement, No. 799, April 25, 1891 But the perpendicular to the motion of the crank pin is the line of the crank itself, and consequently is revolving about O with an angular velocity represented by AOa. Scientific American Supplement, No. 595, May 28, 1887 This exhibits the general law, that with a given angular velocity the centrifugal force varies directly as the radius or diameter of the circle. Scientific American Supplement, No. 531, March 6, 1886 Because Earth’s angular velocity is small, the Coriolis force is usually negligible, but for large-scale motions, such as wind patterns, it has substantial effects. College Physics for AP Courses 2015-08-12T00:00:00Z He found that the angular velocities of Mars at its nearest and farthest distances from the sun were in inverse proportion to the squares of the corresponding distances. The Atlantic Monthly, Volume 05, No. 30, April, 1860 The angular velocity is regulated by a Watt's governor, which secures an isochronism of the motion independently of the charge. Scientific American Supplement, No. 799, April 25, 1891 Her varying angular velocity, and consequent libration in longitude. Scientific American Supplement, No. 447, July 26, 1884 It has increased in the same ratio in which the angular velocity has increased. Scientific American Supplement, No. 531, March 6, 1886 Because I′ is smaller, the angular velocity ω′ must increase to keep the angular momentum constant. College Physics for AP Courses 2015-08-12T00:00:00Z One of his most important discoveries even related to the fact that at some parts of its orbit a planet swings around the sun with greater angular velocity than at others. Great Astronomers What is the angular velocity after 0.750 s if it starts from rest? College Physics for AP Courses 2015-08-12T00:00:00Z But since during this action the wheel D turns relatively to the pin b, the moon evidently rotates about its axis with an angular velocity precisely equal to that of its orbital motion. Scientific American Supplement, No. 447, July 26, 1884 The greater the angular velocity, the greater the centrifugal force. College Physics for AP Courses 2015-08-12T00:00:00Z To find this quantity, we use the conservation of angular momentum and note that the moments of inertia and initial angular velocity are given. College Physics for AP Courses 2015-08-12T00:00:00Z The large angular velocity of the centrifuge quickens the sedimentation. College Physics for AP Courses 2015-08-12T00:00:00Z Uniform Circular Motion and Gravitation discussed only uniform circular motion, which is motion in a circle at constant speed and, hence, constant angular velocity. College Physics for AP Courses 2015-08-12T00:00:00Z If you have ever spun a bike wheel or pushed a merry-go-round, you know that force is needed to change angular velocity as seen in Figure 10.10. College Physics for AP Courses 2015-08-12T00:00:00Z Once the angular acceleration α is known, the final angular velocity and rotational kinetic energy can be calculated. College Physics for AP Courses 2015-08-12T00:00:00Z When the radius of rotation narrows, even in a local region, angular velocity increases, sometimes to the furious level of a tornado. College Physics for AP Courses 2015-08-12T00:00:00Z Does the angular velocity of the merry- go-round increase, decrease, or remain the same? College Physics for AP Courses 2015-08-12T00:00:00Z How will each force affect the angular velocity and angular momentum? College Physics for AP Courses 2015-08-12T00:00:00Z Which will cause a greater increase in the angular velocity of a disk: doubling the torque applied or halving the radius at which the torque is applied? College Physics for AP Courses 2015-08-12T00:00:00Z Angular acceleration α is defined as the rate of change of angular velocity. College Physics for AP Courses 2015-08-12T00:00:00Z The figure shows the right-hand rule used to find the direction of both angular momentum and angular velocity. College Physics for AP Courses 2015-08-12T00:00:00Z In the second part, we can find the final angular velocity using one of the kinematic relationships. College Physics for AP Courses 2015-08-12T00:00:00Z They know, for example, that a point of no return will be reached if they allow their blades to slow below a critical angular velocity during flight. College Physics for AP Courses 2015-08-12T00:00:00Z Because angular momentum is Iω , we can solve for angular velocity. College Physics for AP Courses 2015-08-12T00:00:00Z What is its angular velocity after a 22.0-kg child gets onto it by grabbing its outer edge? College Physics for AP Courses 2015-08-12T00:00:00Z The kinematics of rotational motion describes the relationships among rotation angle, angular velocity, angular acceleration, and time. College Physics for AP Courses 2015-08-12T00:00:00Z What is his angular velocity if each arm is 5.00 kg? College Physics for AP Courses 2015-08-12T00:00:00Z How does the angular velocity of gear B change as a result? College Physics for AP Courses 2015-08-12T00:00:00Z How will the angular velocity of the lazy Susan change if the hamster walks to 0.30 m from the center of rotation? College Physics for AP Courses 2015-08-12T00:00:00Z All of the disks have the same mass, and all have the same magnitude of angular velocity. College Physics for AP Courses 2015-08-12T00:00:00Z How many revolutions do the tires make before coming to rest, given their initial angular velocity is 95.0 rad/s ? College Physics for AP Courses 2015-08-12T00:00:00Z The location of the center of mass in turn determines the angular velocity of the object. College Physics for AP Courses 2015-08-12T00:00:00Z To find the time dependence of emf, we assume the coil rotates at a constant angular velocity ω . College Physics for AP Courses 2015-08-12T00:00:00Z Back emf is the generator output of a motor, and so it is proportional to the motor’s angular velocity ω . College Physics for AP Courses 2015-08-12T00:00:00Z On the other hand, if there is no mechanical load on the motor, it will increase its angular velocity ω until the back emf is nearly equal to the driving emf. College Physics for AP Courses 2015-08-12T00:00:00Z |
| 随便看 |
英语例句辞典收录了117811条英语例句在线翻译词条，基本涵盖了全部常用单词及词组的例句翻译及用法，是英语学习的有利工具。