Experiment 8 Moment of inertia and angular acceleration Related
... The experimental set-up is arranged as shown in Fig. 1. The rotary bearing, with the blower switched on, is aligned horizontally with the adjusting feet on the tripod. The release trip must be so adjusted that it is in contact with the inserted sector mark in the set condition. The precision pully i ...
... The experimental set-up is arranged as shown in Fig. 1. The rotary bearing, with the blower switched on, is aligned horizontally with the adjusting feet on the tripod. The release trip must be so adjusted that it is in contact with the inserted sector mark in the set condition. The precision pully i ...
Moment of inertia
... Counterclockwise torques are positive; clockwise torques are negative. If α = 0 (“static equilibrium”, “dynamic equilibrium”): This means that the net torque (about any pivot) is zero Choose a pivot on top of a force whose value you don’t know and don’t care about P Write down τ = 0 and solve W. Fre ...
... Counterclockwise torques are positive; clockwise torques are negative. If α = 0 (“static equilibrium”, “dynamic equilibrium”): This means that the net torque (about any pivot) is zero Choose a pivot on top of a force whose value you don’t know and don’t care about P Write down τ = 0 and solve W. Fre ...
슬라이드 1
... • This is only a special case in which v1 = v2 = v. • A general case (v1 ≠ v2) is more difficult to average but should give the same result. ...
... • This is only a special case in which v1 = v2 = v. • A general case (v1 ≠ v2) is more difficult to average but should give the same result. ...
Dependence of Intramolecular Vibrational Relaxation on Central
... has also been much progress in time domain measurements of the IVR process in both the ground electronic state19 and the first excited electronic state;mhowever, we limit the scope of this paper to the results obtained from high-resolution spectroscopy. In these spectra the presence of IVR is indica ...
... has also been much progress in time domain measurements of the IVR process in both the ground electronic state19 and the first excited electronic state;mhowever, we limit the scope of this paper to the results obtained from high-resolution spectroscopy. In these spectra the presence of IVR is indica ...
exp-glucose.982327
... of glucose has occurred. The value of the rotation measured at that time is eq. ...
... of glucose has occurred. The value of the rotation measured at that time is eq. ...
CONSERVATION OF MOMENTUM
... conserved about a given axis Another classic example of conservation of angular momentum. When the spinning wheel is moved so its axis of rotation is vertical, the frictionless turntable spins in a direction opposite to the wheel ...
... conserved about a given axis Another classic example of conservation of angular momentum. When the spinning wheel is moved so its axis of rotation is vertical, the frictionless turntable spins in a direction opposite to the wheel ...
Rotational spectroscopy
Rotational spectroscopy is concerned with the measurement of the energies of transitions between quantized rotational states of molecules in the gas phase. The spectra of polar molecules can be measured in absorption or emission by microwave spectroscopy or by far infrared spectroscopy. The rotational spectra of non-polar molecules cannot be observed by those methods, but can be observed and measured by Raman spectroscopy. Rotational spectroscopy is sometimes referred to as pure rotational spectroscopy to distinguish it from rotational-vibrational spectroscopy where changes in rotational energy occur together with changes in vibrational energy, and also from ro-vibronic spectroscopy (or just vibronic spectroscopy) where rotational, vibrational and electronic energy changes occur simultaneously.For rotational spectroscopy, molecules are classified according to symmetry into spherical top, linear and symmetric top; analytical expressions can be derived for the rotational energy terms of these molecules. Analytical expressions can be derived for the fourth category, asymmetric top, for rotational levels up to J=3, but higher energy levels need to be determined using numerical methods. The rotational energies are derived theoretically by considering the molecules to be rigid rotors and then applying extra terms to account for centrifugal distortion, fine structure, hyperfine structure and Coriolis coupling. Fitting the spectra to the theoretical expressions gives numerical values of the angular moments of inertia from which very precise values of molecular bond lengths and angles can be derived in favorable cases. In the presence of an electrostatic field there is Stark splitting which allows molecular electric dipole moments to be determined.An important application of rotational spectroscopy is in exploration of the chemical composition of the interstellar medium using radio telescopes.