Angular momentum and PH101:Tutorial
... Problem 5: A Yo-Yo of mass M has an axle of radius b and a spool of radius R. Its moment of inertia can be taken to be MR2/2. The Yo-Yo is placed upright on a table and the string is pulled with a force F making an angle with the horizontal as shown in Fig.4. The coefficient of friction between th ...
... Problem 5: A Yo-Yo of mass M has an axle of radius b and a spool of radius R. Its moment of inertia can be taken to be MR2/2. The Yo-Yo is placed upright on a table and the string is pulled with a force F making an angle with the horizontal as shown in Fig.4. The coefficient of friction between th ...
Mit - Massachusetts Institute of Technology
... The only way these two times can be the same is if v = 0. Hence given a non-zero wind velocity, the result is correct. (d) In the Michelson-Morley experiment, however, the experiment seems to show that (for arms of equal length) the travel times for light are equal; otherwise these experimenters wou ...
... The only way these two times can be the same is if v = 0. Hence given a non-zero wind velocity, the result is correct. (d) In the Michelson-Morley experiment, however, the experiment seems to show that (for arms of equal length) the travel times for light are equal; otherwise these experimenters wou ...
18. More Circular Motion
... horizontal axis. Light disk • If the red mass is at rest at the axle lowest point, and is then displaced slightly, the torque from the gravitational force mg will pull it back towards the center. This is called stable equilibrium. mg • The red mass can be at rest at the topmost point—but this is uns ...
... horizontal axis. Light disk • If the red mass is at rest at the axle lowest point, and is then displaced slightly, the torque from the gravitational force mg will pull it back towards the center. This is called stable equilibrium. mg • The red mass can be at rest at the topmost point—but this is uns ...
a previous Learning Experience
... A brake pad exerts a frictional force of 40 N against the edge of a spinning disk. The axis of rotation is perpendicular to the plane of the disk, through its center. The spinning disk has mass of M = 15 kg, a radius of R = 0.5 m, and a moment of inertia I = 15.0 kgm2 . What is the magnitude of the ...
... A brake pad exerts a frictional force of 40 N against the edge of a spinning disk. The axis of rotation is perpendicular to the plane of the disk, through its center. The spinning disk has mass of M = 15 kg, a radius of R = 0.5 m, and a moment of inertia I = 15.0 kgm2 . What is the magnitude of the ...
PHY203F08 Exam 3 Name
... 4.50 kg resting on a horizontal surface. The bullet gets embedded in the block. The speed of the block immediately after the collision A) cannot be found because we don't know whether the surface is frictionless. B) is 0.21 km/s. C) is 65 m/s. D) is 9.3 m/s. E) None of these is correct. 2. Two equal ...
... 4.50 kg resting on a horizontal surface. The bullet gets embedded in the block. The speed of the block immediately after the collision A) cannot be found because we don't know whether the surface is frictionless. B) is 0.21 km/s. C) is 65 m/s. D) is 9.3 m/s. E) None of these is correct. 2. Two equal ...
1 ¡ pu{cq2
... align(t t1 0 when x x1 0). The hobo standing at the front of the freight car turns on his green laser pointer at time t1 0 in his rest frame. (Let primed indicate the rest frame of the freight car and hobo, and unprimed indicate the frame of the station - let the light bulb be at x1 0, a ...
... align(t t1 0 when x x1 0). The hobo standing at the front of the freight car turns on his green laser pointer at time t1 0 in his rest frame. (Let primed indicate the rest frame of the freight car and hobo, and unprimed indicate the frame of the station - let the light bulb be at x1 0, a ...
Diffraction and Interference of EM waves
... • Each point on the screen is determined by the path length difference DL of the rays reaching that point ...
... • Each point on the screen is determined by the path length difference DL of the rays reaching that point ...
Relationship Between Linear and Angular Motion
... Problem: It is difficult for an athlete to maintain ω if r is increased and vice versa. e.g., it is harder to maintain an object's rotation when its mass is distributed farther from the axis. (A full explanation of this will have to wait until we talk about angular _______.) ...
... Problem: It is difficult for an athlete to maintain ω if r is increased and vice versa. e.g., it is harder to maintain an object's rotation when its mass is distributed farther from the axis. (A full explanation of this will have to wait until we talk about angular _______.) ...
Engineering Physics-01.p65
... If two waves of the same frequency travel in approximately the same direction and have a phase difference that remains constant with time, they may combine so that their energy is not distributed uniformly in space but is a maximum at certain points and a minimum (or zero) at other points. This effe ...
... If two waves of the same frequency travel in approximately the same direction and have a phase difference that remains constant with time, they may combine so that their energy is not distributed uniformly in space but is a maximum at certain points and a minimum (or zero) at other points. This effe ...
Chapter 7
... Crab Nebula flashes at a rate of 30 times/s. Suppose the light pulses are caused by the rotation of a spherical object that emits light from a pair of diametrically opposed “flashlights” on its equator. What is the maximum radius of the pulsar if no part of its surface can move faster than the speed ...
... Crab Nebula flashes at a rate of 30 times/s. Suppose the light pulses are caused by the rotation of a spherical object that emits light from a pair of diametrically opposed “flashlights” on its equator. What is the maximum radius of the pulsar if no part of its surface can move faster than the speed ...
The Coriolis effect is a deflection of moving objects when
... object's speed in the rotating frame. These additional forces are termed inertial forces, fictitious forces, or pseudo-forces. They allow theapplication of Newton's laws to a rotating system. They are correction factors that do not exist in a non-accelerating or inertial reference frame. Perhaps the ...
... object's speed in the rotating frame. These additional forces are termed inertial forces, fictitious forces, or pseudo-forces. They allow theapplication of Newton's laws to a rotating system. They are correction factors that do not exist in a non-accelerating or inertial reference frame. Perhaps the ...
Report on waist dependence of photo
... The two Fabry-Perot cavities are made by mirrors coated on fused silica substrates, which are optically contacted to a 20 cm long Zerodur spacer. The cavities are custom products provided by Research Electro-Optics (REO). The input mirror is flat, with a nominal transmission of about 100 ppm, while ...
... The two Fabry-Perot cavities are made by mirrors coated on fused silica substrates, which are optically contacted to a 20 cm long Zerodur spacer. The cavities are custom products provided by Research Electro-Optics (REO). The input mirror is flat, with a nominal transmission of about 100 ppm, while ...
AFMActivity2015 - ScholarWorks@UMass Amherst
... 1. Safety Alert: Make sure that the laser beam is not exposed to anyone. 2. Maintain the stability and position of the lever mechanism. 3. Coordinate movements with other those of other groups so that each group’s reflected beam of light reaches a sheet of paper on a wall. 4. Measure the position of ...
... 1. Safety Alert: Make sure that the laser beam is not exposed to anyone. 2. Maintain the stability and position of the lever mechanism. 3. Coordinate movements with other those of other groups so that each group’s reflected beam of light reaches a sheet of paper on a wall. 4. Measure the position of ...
相對論簡介
... interferometer • Arm 2 is aligned along the direction of the Earth’s motion through space • The interference pattern was observed while the interferometer was rotated through 90° • The effect should have been to show small, but measurable, shifts in the fringe pattern ...
... interferometer • Arm 2 is aligned along the direction of the Earth’s motion through space • The interference pattern was observed while the interferometer was rotated through 90° • The effect should have been to show small, but measurable, shifts in the fringe pattern ...
Document
... whereas for the astronaut twin as calculated in the Earth frame, the trip will take Δt0 = Δt/γ = 60/7.1 = 8.4 years. When the twins meet up again, the twin who stayed on Earth is 60 years older than when the spaceship left whereas the astronaut twin is only 8.4 years older, as calculated. The astron ...
... whereas for the astronaut twin as calculated in the Earth frame, the trip will take Δt0 = Δt/γ = 60/7.1 = 8.4 years. When the twins meet up again, the twin who stayed on Earth is 60 years older than when the spaceship left whereas the astronaut twin is only 8.4 years older, as calculated. The astron ...
Physics Exam Review Fall
... 13. What happens when red and green light mix? Blue and Green? Red and blue? Red , blue and green? ( use the terms learned in physics) 14. How does a filter work? 15. Why do we see lightning before we hear it? 16. Distinguish between longitudinal and Transverse waves: 17. What type of waves are soun ...
... 13. What happens when red and green light mix? Blue and Green? Red and blue? Red , blue and green? ( use the terms learned in physics) 14. How does a filter work? 15. Why do we see lightning before we hear it? 16. Distinguish between longitudinal and Transverse waves: 17. What type of waves are soun ...
Non-Inertial Frames
... We are now going to discuss accelerating frames where the non-inertial frame is rotating (relative to the inertial frames). Before we can discuss these, we must introduce some concepts and notation for handling rotation. Many rotation problems involve axes fixed in a rigid body (e.g. the rotation of ...
... We are now going to discuss accelerating frames where the non-inertial frame is rotating (relative to the inertial frames). Before we can discuss these, we must introduce some concepts and notation for handling rotation. Many rotation problems involve axes fixed in a rigid body (e.g. the rotation of ...
Momentum
... concept of inertia and how it is a measure of an object’s desire to resist movement. It was a product of its mass. • Momentum is moving inertia. It is a product of not only an objects mass but also how fast it is moving (velocity) • Newton’s 1st law rewritten to include momentum • An object that is ...
... concept of inertia and how it is a measure of an object’s desire to resist movement. It was a product of its mass. • Momentum is moving inertia. It is a product of not only an objects mass but also how fast it is moving (velocity) • Newton’s 1st law rewritten to include momentum • An object that is ...
PDF - viXra.org
... rotation causes a displacement current J = εε 0 , which makes its contribution in ...
... rotation causes a displacement current J = εε 0 , which makes its contribution in ...
1. The angular momentum of a system remains constant (a) when no
... 1. The angular momentum of a system remains constant (a) when no net, external force acts on the system. (b) when the total kinetic energy is constant. (c) when no net, external torque acts on the system. (d) when only conservative torques act on the system. (e) all the time since it is a conserved ...
... 1. The angular momentum of a system remains constant (a) when no net, external force acts on the system. (b) when the total kinetic energy is constant. (c) when no net, external torque acts on the system. (d) when only conservative torques act on the system. (e) all the time since it is a conserved ...
Euler Force
... Relating rotating frames to stationary frames The following is a derivation of the formulas for accelerations as well as fictitious forces in a rotating frame. It begins with the rel relation ation between a particle's coordinates in a rotating frame and its coordinates in an inertial (stationary) f ...
... Relating rotating frames to stationary frames The following is a derivation of the formulas for accelerations as well as fictitious forces in a rotating frame. It begins with the rel relation ation between a particle's coordinates in a rotating frame and its coordinates in an inertial (stationary) f ...
General Relativity - UF Physics
... prediction of General Relativity. However, we may soon be on the verge of direct detection of gravitational waves. An experiment called LIGO (Laser Interferometer Gravitational Observatory) is under construction in the U.S., as are a couple of experiments in Europe. LIGO is a pair of interferometers ...
... prediction of General Relativity. However, we may soon be on the verge of direct detection of gravitational waves. An experiment called LIGO (Laser Interferometer Gravitational Observatory) is under construction in the U.S., as are a couple of experiments in Europe. LIGO is a pair of interferometers ...
Document
... The magnitude is 7 m and +ve result indicates that the motion is in the +ve direction. Answer of (b) is: When the practical moves from x1= 5 m to x2= 1 m ...
... The magnitude is 7 m and +ve result indicates that the motion is in the +ve direction. Answer of (b) is: When the practical moves from x1= 5 m to x2= 1 m ...
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.