Due to the principle feeder relatively simple‚ so long as the principle of control over their work and structure ‚ under the theoretical guidance ‚ combined with practical experience will be able to maintain good electromagnetic vibrating feeder maintenance and debugging. Electromagnetic vibrating feeder is a more complete particle orientation forced vibration double elastic system . The entire system is operating in a low critical resonance state‚ it is simple structure ‚ stable‚ low power consumption
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why water has low vapour pressur and high surface tension Ok‚ well the answer to your first question is hydrogen bonds. Water has high surface tension and low vaporization temp because the hydrogen bonds in water make strong dipoles that are difficult to separate (yielding high surface tension) and greater energy to overcome when vaporized. study help site http://ocw.mit.edu/courses/physics/8-01-physics-i-classical-mechanics-fall-1999/syllabus/ Explain gas laws through KMT acc to k.m.t gasses
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Dropping Out University For many teenagers‚ there are many negative factors that can lead them to drop out of university. The first cause that teenagers can’t get the right decision when they first graduated from school. The lack of responsibility and self-encourage keep them thinking that the university not good that caused by involving them with wrong kind of people or activity that lead to less focus on the importance of education. Another factor that cause a student to drop out university
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3 Question 1 (Marks: 20) On a straight‚ flat section of road‚ a car follows a truck. Initially (t < 0)‚ both are travelling at speed v0 = 90 k.p.h. The truck maintains constant speed throughout. The car is initially 2.0 seconds behind the truck‚ i.e. for t < 0 the car
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n physics‚ measure of the turning effect‚ or torque‚ produced by a force acting on a body. It is equal to the product of the force and the perpendicular distance from its line of action to the point‚ or pivot‚ about which the body will turn. The turning force around the pivot is called the moment. Its unit is the newton metre. The moment of a force can be worked out using the formula: moment = force applied × perpendicular distance from the pivot. If the magnitude of the force is F newtons and
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Part one: The Lab You will be helping Galileo perform the experiment to determine if objects with different mass fall at the same‚ or different‚ rates in the air and in a vacuum. Before you conduct your experiment‚ you need to form a hypothesis. A hypothesis is a prediction of what you think will happen in the experiment. The hypothesis is a statement that describes “if” a certain set of circumstances are present “then” there will be a specific result that will occur. Record your hypothesis here:
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Atomic Spectra Lab Purpose: The purpose of this lab was to identify the wave length and spectra of the two elements‚ mercury and hydrogen. The wavelengths of the two elements represent the characteristic energies of moving electrons. The spectra of the two elements are what side of the energy spectrum their wavelengths are on. Materials: • Hydrogen lamp • Mercury lamp • 2 diffraction devices • Flashlight • Paper • Pencil • Calculator Procedure: 1. Place
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Oxides with a perovskite structure yield many commercial ferroelectrics (materials that possess a net macroscopic polarization switchable under external electric field). The structure of these oxides‚ having a general formula ABO3‚ can be represented as a network of corner-sharing oxygen octahedra with higher-charge cations B located inside these octahedra and lower-charge cations A occupying the cavities between the octahedra. Typically the spontaneous polarization originates from the concerted
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ECE 4784/6784‚ Wireless Communications‚ Assignment 1 1. (15) A half-wave dipole is situated at the top of a cellular tower‚ oriented vertically on the tower. The current into the dipole is a sinusoidal current at frequency 870 MHz‚ with peak value I = 0.1 ampere. Consider a mobile receiver at a distance of d kilometers along the horizon. Remember the dipole pattern gives field strength E(d‚ θ‚ φ) = 60I cos( π cos(θ)) 2 aθ v/m d sin(θ) (1) a. Assume free-space propagation laws.
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Skit Rubric: Changes CATEGORY | 4 | 3 | 2 | 1 | Face and Body | Facial expressions and body language generate a strong interest and enthusiasm.Back is never turned toward audience. | Facial expressions and body language sometimes generate a strong interest and enthusiasm. Back is occasionally turned toward audience. | Facial expressions and body language are used to try to generate enthusiasm‚ but seem somewhat faked. Back is often turned toward audience. | Very little use of facial expressions
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