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This discussion provides a good understanding of the difference between Radio Frequency Discharge (RFD) and Dielectric Barrier Discharge (DBD) in an excimer lamp. Qualitatively speaking, micro-plasmas are formed in a DBD (which are thread-like in structure). These thread-like plasmas generate irregular light emission (flickering light). In the case of a RF discharge, a plasma is formed uniformly between the dielectric material, resulting in a very uniform emission of light (spatially and temporarily), i.e., no flickering light.
a total of 39 bright and 39 dark newtons rings not counting the dark spot at the center are observed when 570 nm light
A convex spherical mirror, whose focal length has a magnitude of 19.8 cm, Where should the object be placed cm in front of the mirror
A person stands on a bathroom scale in an elevator that is accelerating upward. What is the acceleration of the elevator
A stamp collector is viewing a stamp with a magnifying glass held next to her eye. Her near point is 25 cm from her eye. What is the angular magnification when the image of the stamp is 39 cm from the eye
A person in a cave emits a sound and receives an echo 2.5 seconds later. How far is that person away from the wall
a rocket is launched and attains a speed of 5400 ms when 62000 m above the earth. if the engines shut down how much
What is an actual mechanical advantage of the system
An automobile has a mass of 1710 kg and a velocity of 23.2 m/s. It makes a rear-end collision with a stationary car whose mass is 2470 kg. What is the velocity of the two cars just after the collision
A 28.9-g bullet is fired from a rifle. It takes 3.86 × 10-3 s for the bullet to travel the length of the barrel, find the average net force exerted on the bullet
A 100 gram aluminum calorimeter contains 250 gram of water. The two substances are in thermal equilibrium at 10°C. Find what is the specific heat of the unknown second sample
Determine the minimum speed of a proton whose position along the x axis is measured to be x=2.50 or -0.25 pm
At NASA's Zero Gravity Research Facility in Cleveland, Ohio, experimental payloads fall freely from rest in an evacuated vertical shaft through a distance of 132 m. How fast will the payload be traveling when it reaches the bottom of the shaft
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