Fundamental physics concepts

Physics Lab Report – C15 Title: Investigation of magnetic fields by search coil Objective: To use a search coil and a CRO to investigate the magnetic fields generated by alternating currents through a straight wire and a slinky solenoid. Apparatus: |Search coil 1 |Slinky solenoid 1 | |CRO 1 |Slotted

Data Collection. The quantity of data required and strategy for data collections for a structure determination depend on several conditions. Crystallographic symmetry: the amount of symmetry present in the crystal system and space group. With a high symmetry crystal system—for example, a cubic, one needs only to collect diffraction data through as little as 35°. Conversely, in a lower symmetry crystal system, such as a monoclinic, data might need to be collected through 180°. Non-crystallographic

Outer layer This layer was modelled as an infinitely long isotropic hollow cylinder with an axial force〖(T〗_3), inside and outside surface pressures〖 (p〗_2) and 〖(p〗_3=0) (Fig.3). Therefore, relying on Boresi et al. (2003) the stress distributions are: "σ" _"r" ^"o" "=" ("p" _"2" "c" _"2" ^"2" "-" "p" _"3" "c" _"3" ^"2" )/("c" _"3" ^"2" "-" "c" _"2" ^"2" ) "-" ("c" _"2" ^"2" "c" _"3" ^"2" "(" "p" _"2" "-" "p" _"3" ")" )/("c" ^"2" "(" "c" _"3" ^"2" "-" "c" _"2" ^"2" ")" ) ","

8 We systematically demonstrate that one-dimensional phononic crystal (1-D PnC) tethers can signif- 9 icantly reduce tether loss in micromechanical resonators to a point where the total energy loss is 10 dominated by intrinsic mechanisms, particularly phonon damping. Multiple silicon resonators are 11 designed, fabricated, and tested to provide comparisons in terms of the number of periods in the 12 PnC and the resonance frequency, as well as a comparison with conventional straight-beam tethers.

Abstract A series of Cd2+ doped cobalt ferrite magnetic nanoparticles with the formula CdxCo1-xFe2O4 (x= 0.0, 0.1, 0.2, 0.3, 0.4, 0.5) were successfully synthesized and coated by silica shell. The effects of non-magnetic Cd+2 doping and silica coating on structural, magnetic, and optical properties of CoFe2O4 nano-particles had been investigated. XRD patterns confirmed that all samples were found to have a cubic spinel structure with average crystallite sizes 15-43nm. It was observed that increasing

All magnets produce their own invisible magnetic field that’s unable to be seen with the naked eye, and each magnetic field interacts with other magnetic fields. Magnets are made of metals like iron ore, iron, or alloys, which is a mixture of metals, or of a metal and a nonmetal. Magnets only react with certain metals such as iron, steel, nickel, or cobalt. They have two poles, one of them is north pole, while the other is called the south pole. The opposite poles attract, while the same ones repel

The rate of effusion of a gaseous substance is inversely proportional to the square root of its molar mass. where: Rate1 is the rate of effusion of the first gas (volume or number of moles per unit time). Rate2 is the rate of effusion for the second gas. M1 is the molar mass of gas 1 M2 is the molar mass of gas 2. Graham's law states that the rate of diffusion or of effusion of a gas is inversely proportional to the square root of its molecular weight. Thus, if the molecular weight of one gas is

1. Describe the attractive forces and repulsive forces that exist between two atoms as the atoms move closer together. A. An attractive force occurs between the protons (nucleus) of one atom and the electrons of another atom. a repulsive force is a force that occurs between like charged electrons and like charged protons of the two atoms. 2. Compare a bond between two atoms to a spring between two students. A. Each student on either side of the spring represents an atom & the spring between them

Mackenzie Madden, T.J Manning, September 2nd, 2015 Danny Minogue, Lindsay Newton The Effect of Beetle Mass on the Beetle’s Pulling Power Introduction Does beetle mass effect the pulling power? This theory has been tested by conducting an experiment with a bess beetle and some paperclips. Pulling power was calculated by dividing the mass the beetle pulled by the mass of the individual beetle. The data that was collected was processed into a graph that shows how mass affects the

Olagunju Kehinde Ensc 473 Assignment 1. Time Weighted Average is considered the mean exposure by a certain hazard contaminant. Most times this is used for a place of work . An 8 hour time is usually set a standard or baseline time for a day, a short term exposure limit of 15 minutes is also used at times. The equation below is used to calculate the value; Figure 1 Source: Wiki (2016) C1 = concentration at duration T which is in hours 2. Variability in exposure of contaminants can occur in time