Magic Frequencies for Cesium Primary
... transition is zero (due to cancellation of the light shifts of the lower and upper clock levels). To extend this successful technique to microwave frequencies one must firstly check if the magic frequencies exist for such transitions. In our recent work [8] we found the magic frequencies for aluminu ...
... transition is zero (due to cancellation of the light shifts of the lower and upper clock levels). To extend this successful technique to microwave frequencies one must firstly check if the magic frequencies exist for such transitions. In our recent work [8] we found the magic frequencies for aluminu ...
18. Electromagnetic Waves
... Electric fields accelerate charged particles. The energy the particles gain must come from the field. So electric fields must carry energy. Same for momentum. This is hard to understand at first because the electric field is something that can exist in empty space, far away from its sources. How can ...
... Electric fields accelerate charged particles. The energy the particles gain must come from the field. So electric fields must carry energy. Same for momentum. This is hard to understand at first because the electric field is something that can exist in empty space, far away from its sources. How can ...
09_H1Phy_DHS_Prelim_..
... Climbing frames, swings and slides make children’s playgrounds great fun, but of course the children can damage themselves if they fall off. Broken bones actually mend quickly in young children, but severe knocks on the head can be more dangerous because they can cause permanent brain damage. The se ...
... Climbing frames, swings and slides make children’s playgrounds great fun, but of course the children can damage themselves if they fall off. Broken bones actually mend quickly in young children, but severe knocks on the head can be more dangerous because they can cause permanent brain damage. The se ...
CMock exam IV paper 2
... In Figure (a), a stone is released from rest at a certain height above water. After some time, the stone hits the water surface. For a short duration immediately after the impact, we can assume the water resistance acting on the stone to be constant. Figure (b) shows the acceleration-time graph of t ...
... In Figure (a), a stone is released from rest at a certain height above water. After some time, the stone hits the water surface. For a short duration immediately after the impact, we can assume the water resistance acting on the stone to be constant. Figure (b) shows the acceleration-time graph of t ...
Jeopardy Review
... metal surface, and electrons are emitted from the surface as a result. To produce more electrons per unit time but with less kinetic energy per electron, the experimenter should do which of the following? (A) Increase the intensity and decrease the wavelength of the light. (B) Increase the intensity ...
... metal surface, and electrons are emitted from the surface as a result. To produce more electrons per unit time but with less kinetic energy per electron, the experimenter should do which of the following? (A) Increase the intensity and decrease the wavelength of the light. (B) Increase the intensity ...
Physics 102 Introduction to Physics
... When you look at something … anything … you are, in fact, seeing light -- light that somehow left the object far or near and reached your eyes. Light is all our eyes can really see. You also encounter light in devices that produce light -- incandescent bulbs, fluorescent bulbs, lasers, lightning bug ...
... When you look at something … anything … you are, in fact, seeing light -- light that somehow left the object far or near and reached your eyes. Light is all our eyes can really see. You also encounter light in devices that produce light -- incandescent bulbs, fluorescent bulbs, lasers, lightning bug ...
Cross Product
... If a particle with linear momentum p is at a position r with respect to some point, then its angular momentum L is the cross product of r and p L=rxp ...
... If a particle with linear momentum p is at a position r with respect to some point, then its angular momentum L is the cross product of r and p L=rxp ...
Chapter 2 (Particle Properties of Waves)
... If is constant with time (i.e., d/dt=0), then we are moving with the wave, and ...
... If is constant with time (i.e., d/dt=0), then we are moving with the wave, and ...
The Lorentz Force and the Radiation Pressure of Light
... contrary, the particle drifts off in some other direction at a constant average velocity and one searches for a way to explain away this fact. Unfortunately, there seem to be several deep inconsistencies in the entire approach. A first is that the freshman derivation is evidently an invalid attempt ...
... contrary, the particle drifts off in some other direction at a constant average velocity and one searches for a way to explain away this fact. Unfortunately, there seem to be several deep inconsistencies in the entire approach. A first is that the freshman derivation is evidently an invalid attempt ...
Cosmic Objects – Cosmology – Study Guide
... 11. Where do we find GRBs? Deep Space (across the entire sky) 12. When were GRBs first seen? 1960’s (Compton Gamma Ray Observer) 13. Why can’t we study GRBs on Earth? Atmosphere blocks Gamma Rays What is the Universe? (Reading) 14. Name and describe the three shapes of the universe. Flat – infinite; ...
... 11. Where do we find GRBs? Deep Space (across the entire sky) 12. When were GRBs first seen? 1960’s (Compton Gamma Ray Observer) 13. Why can’t we study GRBs on Earth? Atmosphere blocks Gamma Rays What is the Universe? (Reading) 14. Name and describe the three shapes of the universe. Flat – infinite; ...
Magnetism Review Part 2 Problem Set
... m/s as it passes undeflected through a pair of parallel plates, as shown above. The plates are separated by a distance d = 6.0 x 10-3 m, and a constant potential difference V is maintained between them. A uniform magnetic field of magnitude B = 0.20 T directed into the page exists both between the p ...
... m/s as it passes undeflected through a pair of parallel plates, as shown above. The plates are separated by a distance d = 6.0 x 10-3 m, and a constant potential difference V is maintained between them. A uniform magnetic field of magnitude B = 0.20 T directed into the page exists both between the p ...
Time in physics
Time in physics is defined by its measurement: time is what a clock reads. In classical, non-relativistic physics it is a scalar quantity and, like length, mass, and charge, is usually described as a fundamental quantity. Time can be combined mathematically with other physical quantities to derive other concepts such as motion, kinetic energy and time-dependent fields. Timekeeping is a complex of technological and scientific issues, and part of the foundation of recordkeeping.