mi11
... Spinning around When we want to describe the movement of an object we can talk about its velocity and its acceleration. But what about something like a CD which stays in the same place but spins around? Different points on the CD are moving at ______ velocities, but they all trace out the same _____ ...
... Spinning around When we want to describe the movement of an object we can talk about its velocity and its acceleration. But what about something like a CD which stays in the same place but spins around? Different points on the CD are moving at ______ velocities, but they all trace out the same _____ ...
rigid-body motion
... • Often useful to use momentum variables as main variables, and only compute v and ω (auxiliary variables) as needed for the ...
... • Often useful to use momentum variables as main variables, and only compute v and ω (auxiliary variables) as needed for the ...
Space For Refection
... 3) How long would it take Ryan to run 100 metres if he could run at 12m/s? 4) Ben throws a book at Dan and it travels at 50m/s for 0.2s. ...
... 3) How long would it take Ryan to run 100 metres if he could run at 12m/s? 4) Ben throws a book at Dan and it travels at 50m/s for 0.2s. ...
March 3 - Astronomy
... If the space shuttle orbits at a distance of 20 miles from the Earth’s surface, according to Newton’s universal law of gravity, Earth’s gravitational force is a little less (because the distance from Earth’s center is 20 miles larger) than on the Earth’s surface. Yet, astronauts are weightless. How ...
... If the space shuttle orbits at a distance of 20 miles from the Earth’s surface, according to Newton’s universal law of gravity, Earth’s gravitational force is a little less (because the distance from Earth’s center is 20 miles larger) than on the Earth’s surface. Yet, astronauts are weightless. How ...
lecture23
... speed is v2. What is the angular speed ω of the stick after the collision? External forces: weight of the stick and force on the stick by the pivoting axle produce no torque. Weight of the bullet is negligible. ...
... speed is v2. What is the angular speed ω of the stick after the collision? External forces: weight of the stick and force on the stick by the pivoting axle produce no torque. Weight of the bullet is negligible. ...
AdL Subsystems part 1 - DCC
... Stable configuration appears to have many advantages, and is being carefully studied ...
... Stable configuration appears to have many advantages, and is being carefully studied ...
Special Relativity
... • In 1905, Einstein’s first paper on relativity dealt only with inertial reference frames (constant velocity). • 10 years later, he published a more encompassing theory of relativity that considered accelerated motion and it’s connection to gravity. This was a discussion of “general” relativity. • H ...
... • In 1905, Einstein’s first paper on relativity dealt only with inertial reference frames (constant velocity). • 10 years later, he published a more encompassing theory of relativity that considered accelerated motion and it’s connection to gravity. This was a discussion of “general” relativity. • H ...
- Cross Roads ISD
... motion (object only travels in one direction); ex: train traveling on the tracks Motion takes place over time and depends on the frame of reference; ex: while the train moves on the tracks, the earth is spinning on its axis and it’s rotating around the sun ...
... motion (object only travels in one direction); ex: train traveling on the tracks Motion takes place over time and depends on the frame of reference; ex: while the train moves on the tracks, the earth is spinning on its axis and it’s rotating around the sun ...
Fronts and the Coriolis Effect
... • Decreases to zero at the equator when the direction of the apparent deflection reverses itself from one hemisphere to the other. ...
... • Decreases to zero at the equator when the direction of the apparent deflection reverses itself from one hemisphere to the other. ...
Rotational Motion and Gravity
... rotates four times each minute and has a diameter of 18.0 m. (a) What is the centripetal acceleration of the child? (b) What force (magnitude and direction) does the seat exert on the child at the lowest point of the ride? (c) What force does the seat exert on the child at the highest point of the r ...
... rotates four times each minute and has a diameter of 18.0 m. (a) What is the centripetal acceleration of the child? (b) What force (magnitude and direction) does the seat exert on the child at the lowest point of the ride? (c) What force does the seat exert on the child at the highest point of the r ...
Frames of Reference
... •Fictitious forces explains motion in a rotating (non-inertial) frame of reference. •From fixed frame no unbalanced force is seen. •Objects moving in a circle have an acceleration toward the center called centripetal force. •Centrifugal force is the fictitious force that balances this by being exert ...
... •Fictitious forces explains motion in a rotating (non-inertial) frame of reference. •From fixed frame no unbalanced force is seen. •Objects moving in a circle have an acceleration toward the center called centripetal force. •Centrifugal force is the fictitious force that balances this by being exert ...
rotational dynamics
... Is there a “special” set of xyz axes for a given system? Yes! Possible (but difficult) to find “principal axes” such that L products of inertia are zero → in this reference frame: ...
... Is there a “special” set of xyz axes for a given system? Yes! Possible (but difficult) to find “principal axes” such that L products of inertia are zero → in this reference frame: ...
Problem 13.29 A car is traveling at 30 mi/hr when
... Problem 13.109 A powerboat being tested for maneuverability is started from rest at t = 0 and driven in a circular path of 12 m radius. The tangential component of the boat’s acceleration as a function of time is at = 0.4t m/s2 . (a) What are the boat’s velocity and acceleration in terms of normal a ...
... Problem 13.109 A powerboat being tested for maneuverability is started from rest at t = 0 and driven in a circular path of 12 m radius. The tangential component of the boat’s acceleration as a function of time is at = 0.4t m/s2 . (a) What are the boat’s velocity and acceleration in terms of normal a ...
Circular Motion - strikerphysics11
... Angular velocity is denoted with ω, omega, and the direction is at a right angle to the plane of the circular motion (use right hand ...
... Angular velocity is denoted with ω, omega, and the direction is at a right angle to the plane of the circular motion (use right hand ...
Laser Diodes Figure 1 - Laser Diodes Convert an Electrical Signal to
... a DC signal. The rear facet monitor photodiode, D2, outputs a current proportional to the laser output. The current out of D2 goes to a servo loop, ensuring that the average optical output of D1 remains constant. U1 forms the heart of the servo loop. Capacitor, C1, configures U1 as an integrator. T ...
... a DC signal. The rear facet monitor photodiode, D2, outputs a current proportional to the laser output. The current out of D2 goes to a servo loop, ensuring that the average optical output of D1 remains constant. U1 forms the heart of the servo loop. Capacitor, C1, configures U1 as an integrator. T ...
Circular.Rotary Motion
... causes rotation. • The magnitude of torque is the product of the force and the lever arm. Because force is measured in newtons, and distance is measured in meters, torque is measured in newton-meters ...
... causes rotation. • The magnitude of torque is the product of the force and the lever arm. Because force is measured in newtons, and distance is measured in meters, torque is measured in newton-meters ...
Final Solution-Phy 105-Fall2011-1
... c) Calculate the work done to spin the ring at w 50rpm about its diameter. 2) Solution: a) All parts of the ring are at the same distance R from the axis of rotation passing through its CM at its center and perpendicular to its plane. We consider a small part of the ring of mass mi located betwe ...
... c) Calculate the work done to spin the ring at w 50rpm about its diameter. 2) Solution: a) All parts of the ring are at the same distance R from the axis of rotation passing through its CM at its center and perpendicular to its plane. We consider a small part of the ring of mass mi located betwe ...
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.