Lecture Mechanics Rigid Body ppt
... (ii) rotate upon its center To describe motion as a whole, need (i) x (t) (x = position of center for example), and (ii) angles q (t) and f (t), describing the angular orientation of the dumbbell with respect to a chosen coordinate system (rotation). ...
... (ii) rotate upon its center To describe motion as a whole, need (i) x (t) (x = position of center for example), and (ii) angles q (t) and f (t), describing the angular orientation of the dumbbell with respect to a chosen coordinate system (rotation). ...
AH Physics SpaceandTimeTeachersNotes Mary
... The equality of Inertial and Gravitational Mass as an Argument for the General Postulate of Relativity Albert Einstein From 1905 to 1916 Einstein turned his attention to extending his principle of relativity to all observers. The laws of physics should be the same anywhere and for any observers, not ...
... The equality of Inertial and Gravitational Mass as an Argument for the General Postulate of Relativity Albert Einstein From 1905 to 1916 Einstein turned his attention to extending his principle of relativity to all observers. The laws of physics should be the same anywhere and for any observers, not ...
64E-4 - Florida Administrative Code
... (7) “Aperture stop” means an opening serving to limit the size and to define the shape of the area over which radiation is measured. (8) “Attenuation” means the decrease in the radiant flux of any optical beam as it passes through an absorbing or scattering medium. (9) “Certified laser product” mean ...
... (7) “Aperture stop” means an opening serving to limit the size and to define the shape of the area over which radiation is measured. (8) “Attenuation” means the decrease in the radiant flux of any optical beam as it passes through an absorbing or scattering medium. (9) “Certified laser product” mean ...
PHYS101 Sec 001 Hour Exam No. 3 Page: 1
... 22 An aircraft carrier uses a catapult to launch airplanes from its deck. The catapult consists of a hook that runs along a slot in the deck. The airplane is attached to the hook and is pulled along the slot until it reaches take-off speed. Suppose that the catapult accelerates the plane at 5 times ...
... 22 An aircraft carrier uses a catapult to launch airplanes from its deck. The catapult consists of a hook that runs along a slot in the deck. The airplane is attached to the hook and is pulled along the slot until it reaches take-off speed. Suppose that the catapult accelerates the plane at 5 times ...
Circular Motion
... which is called the small-angle formula. Here, D is the linear size (i.e., diameter) of the object at a distance d which subtends an angle α measured in arcseconds (the 206,265 is the conversion factor between arcseconds and radians). The lengths d and D will be in the same units (e.g., if d is meas ...
... which is called the small-angle formula. Here, D is the linear size (i.e., diameter) of the object at a distance d which subtends an angle α measured in arcseconds (the 206,265 is the conversion factor between arcseconds and radians). The lengths d and D will be in the same units (e.g., if d is meas ...
chapter7_PC
... The booster rocket casing of 1500 kg is separated from a 12,000 kg spaceship by explosive bolts. An impulse of at least 480 Ns is needed for safe separation. The speed of the booster casing relative to the spaceship after separation is: ...
... The booster rocket casing of 1500 kg is separated from a 12,000 kg spaceship by explosive bolts. An impulse of at least 480 Ns is needed for safe separation. The speed of the booster casing relative to the spaceship after separation is: ...
Slide 1
... of Particles; General Motion The angular momentum of a system of particles can change only if there is an external torque—torques due to internal forces cancel. ...
... of Particles; General Motion The angular momentum of a system of particles can change only if there is an external torque—torques due to internal forces cancel. ...
Rethinking the Principle of Inertia
... ond law, Newton said that a change of motion is proportional to the applied force and occurs in the same direction as that force. But there is more to the story. Newton’s laws of motion describe relationships between external forces acting on a body and the motion of the body, but they do not consid ...
... ond law, Newton said that a change of motion is proportional to the applied force and occurs in the same direction as that force. But there is more to the story. Newton’s laws of motion describe relationships between external forces acting on a body and the motion of the body, but they do not consid ...
Apparently Deriving Fictitious Forces
... I am rotating and they are stationary. If such a push is felt by all of us, then all of us are rotating 2. But then he finds even another way to resolve it: if while moving to an adjacent sphere he feels a lateral force acting on his body, he at least knows he is rotating. More aware of t ...
... I am rotating and they are stationary. If such a push is felt by all of us, then all of us are rotating 2. But then he finds even another way to resolve it: if while moving to an adjacent sphere he feels a lateral force acting on his body, he at least knows he is rotating. More aware of t ...
Rolling Motion: • A motion that is a combination of rotational
... • If any component of the net external torque on a system is zero, then the component of the angular momentum of the system along that axis is conserved. • If a rotating object can some how changes its moment of inertia by internal forces, then the object will spin faster or slower depending on whet ...
... • If any component of the net external torque on a system is zero, then the component of the angular momentum of the system along that axis is conserved. • If a rotating object can some how changes its moment of inertia by internal forces, then the object will spin faster or slower depending on whet ...
mr10Tsol
... difficult to tilt it, and you feel it exerting a large force on you. When a person sitting on the rotating stool tries to tilt the wheel they also feel the force that it exerts on them, but they are not held stationary to the ground by friction, so they begin to rotate with the stool. Angular moment ...
... difficult to tilt it, and you feel it exerting a large force on you. When a person sitting on the rotating stool tries to tilt the wheel they also feel the force that it exerts on them, but they are not held stationary to the ground by friction, so they begin to rotate with the stool. Angular moment ...
High Power Laser Diode Driver Based on Power Converter
... [21], [24], [26]. These designs are based on linear amplifier techniques. For these lower powered lasers, switching currents are on the order of 100 mA or less and hence power handling requirements are minimal. For driving higher-powered lasers, the low efficiency of these topologies become importan ...
... [21], [24], [26]. These designs are based on linear amplifier techniques. For these lower powered lasers, switching currents are on the order of 100 mA or less and hence power handling requirements are minimal. For driving higher-powered lasers, the low efficiency of these topologies become importan ...
Forces II
... (rpm). A coordinate system (x, y) is rotating with the turntable, the origin of which is the center of the turntable, with the x and y-axes pointing radially outward. At time t = 0, this coordinate system is perfectly aligned with a coordinate system fixed to the non-rotating room (x, y). The an ...
... (rpm). A coordinate system (x, y) is rotating with the turntable, the origin of which is the center of the turntable, with the x and y-axes pointing radially outward. At time t = 0, this coordinate system is perfectly aligned with a coordinate system fixed to the non-rotating room (x, y). The an ...
Bistability and Pulsations in Semiconductor Lasers
... trated in Fig. 4. Consider the bistable laser consisting of two parts, a gain section which is pumped with a constant current ZI and an absorber section which acts like a photodiode within theoptical cavity. The current Z, throughthisphotodiode consists of two terms: thefirst one is the normal diode ...
... trated in Fig. 4. Consider the bistable laser consisting of two parts, a gain section which is pumped with a constant current ZI and an absorber section which acts like a photodiode within theoptical cavity. The current Z, throughthisphotodiode consists of two terms: thefirst one is the normal diode ...
Object Orientation and Rotation
... the axis of rotation a, and Ia is the moment of inertia about that axis. It is possible to compactly represent the moments of inertia within a matrix structure, forming what is known as an inertia tensor. The inertia tensor in three dimensions is a 3 × 3 matrix. For a given rigid body, the leading d ...
... the axis of rotation a, and Ia is the moment of inertia about that axis. It is possible to compactly represent the moments of inertia within a matrix structure, forming what is known as an inertia tensor. The inertia tensor in three dimensions is a 3 × 3 matrix. For a given rigid body, the leading d ...
Uniform Circular Motion
... Figure 3b shows the velocity vectors at the two positions. Notice that the magnitude of the velocity vector is not changing. In Fig. 3c the two velocity vectors are redrawn, without changing their lengths or orientations. The arrow joining the tips of the velocity vectors represents the change ∆v in ...
... Figure 3b shows the velocity vectors at the two positions. Notice that the magnitude of the velocity vector is not changing. In Fig. 3c the two velocity vectors are redrawn, without changing their lengths or orientations. The arrow joining the tips of the velocity vectors represents the change ∆v in ...
AP Physics - eLearning
... 10. A skater extends her arms horizontally, holding a 5-kg mass in each hand. She is rotating about a vertical axis with an angular velocity of one revolution per second. If she drops her hands to her sides, what will the final angular velocity (in rev sec ) be if her moment of inertia remains appr ...
... 10. A skater extends her arms horizontally, holding a 5-kg mass in each hand. She is rotating about a vertical axis with an angular velocity of one revolution per second. If she drops her hands to her sides, what will the final angular velocity (in rev sec ) be if her moment of inertia remains appr ...
Physics 1402 Homework Solutions - Walker, Chapter 23 Conceptual
... By the RHR for the sense in which B circulates around a current-carrying wire, the B-field due to the wire is out of the page through Ring A. Furthermore, if the current in the wire is increasing with time, this B-field is G getting larger. Therefore, by Lenz’s law, Bind will point into the page thr ...
... By the RHR for the sense in which B circulates around a current-carrying wire, the B-field due to the wire is out of the page through Ring A. Furthermore, if the current in the wire is increasing with time, this B-field is G getting larger. Therefore, by Lenz’s law, Bind will point into the page thr ...
PH212Chapter11_15
... • Hint: A physics argument will show that the net force on the particle is zero, so the net torque must be zero about any point. • Make a mathematical argument (on the whiteboard) • Make a diagrammatic argument (on the whiteboard) back ...
... • Hint: A physics argument will show that the net force on the particle is zero, so the net torque must be zero about any point. • Make a mathematical argument (on the whiteboard) • Make a diagrammatic argument (on the whiteboard) back ...
rotary motion - GEOCITIES.ws
... A 7.5 kg bowling ball (Irolling = 7/5 m R2 ) with a radius of 12 cm is at the top of a ramp 5.0 m long and inclined at 30.00. a) Find the torque acting on the ball. b) Find its rotational inertia. ...
... A 7.5 kg bowling ball (Irolling = 7/5 m R2 ) with a radius of 12 cm is at the top of a ramp 5.0 m long and inclined at 30.00. a) Find the torque acting on the ball. b) Find its rotational inertia. ...
Sagnac effect
The Sagnac effect (also called Sagnac interference), named after French physicist Georges Sagnac, is a phenomenon encountered in interferometry that is elicited by rotation. The Sagnac effect manifests itself in a setup called a ring interferometer. A beam of light is split and the two beams are made to follow the same path but in opposite directions. To act as a ring the trajectory must enclose an area. On return to the point of entry the two light beams are allowed to exit the ring and undergo interference. The relative phases of the two exiting beams, and thus the position of the interference fringes, are shifted according to the angular velocity of the apparatus. This arrangement is also called a Sagnac interferometer.A gimbal mounted mechanical gyroscope remains pointing in the same direction after spinning up, and thus can be used as a rotational reference for an inertial navigation system. With the development of so-called laser gyroscopes and fiber optic gyroscopes based on the Sagnac effect, the bulky mechanical gyroscope is replaced by one having no moving parts in many modern inertial navigation systems.The principles behind the two devices are different, however. A conventional gyroscope relies on the principle of conservation of angular momentum whereas the sensitivity of the ring interferometer to rotation arises from the invariance of the speed of light for all inertial frames of reference.