1. The Reggae Rhythm Electronics Corporation retains a service crew to repair machine breakdowns that occur on an average of 3 per day (approximately Poisson in nature). The crew can service an average of 8 machines per day‚ with a repair time distribution that resembles the exponential distribution. a. What is the utilization rate for this service? b. What is the average downtime for a machine that is broken? c. How many machines are waiting to be serviced at any given time? d. What is
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Some terms related with reflection are – 1. Incident Ray - The light ray striking a reflecting surface is called the incident ray. 2. Reflected Ray – The light ray obtained after reflection from the surface in the same medium in which incident ray is traveling. 3. Normal – The perpendicular drawn to the reflecting surface at the point of incidence is called the Normal. 4. Angle of Incidence – The angle which the incident ray makes with the normal at the point of incidence. It is denoted
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Hypothesis: If the light goes through different mediums‚ then the light will bend because it is slowing down as it passes through the medium. Equipment: Semicircular plastic dish Polar graph paper Ray box with single slit Water Syrup Experimental Design: A ray box with a single slit will be shone through a semicircular dish through air‚ water‚ and syrup‚ on top of polar graph paper to see how the light will bend. Procedure: A semicircular dish was placed at the centre
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investigate the behavior of light when it passes from air into an optically denser medium. Prediction / Hypothesis: When the light (incident ray) passes from air into an optically denser medium with an angle of incidence equal to zero‚ there would be no refraction. When the light passes at an angle from air into an optically denser medium‚ the light (incident ray) will immediately change direction and bent towards the normal which has an angle of incidence of 0. Method: 1. The semicircular
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called specular or regular reflection. The laws of reflection are as follows: The incident ray‚ the reflected ray and the normal to the reflection surface at the point of the incidence lie in the same plane. The angle which the incident ray makes with the normal is equal to the angle which the reflected ray makes to the same normal. he reflected ray and the incident ray are on the opposite sides of the normal. These three laws can all be derived from the reflection equation
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Ray Lewis Ray Lewis was born May 15‚ 1975 and is a linebacker who has played for the Baltimore Ravens of the NFL since 1996. Lewis has been selected to eleven Pro Bowls and been named an Associated Press All-Pro nine times. He won the NFL Defensive Player of the Year in 2000 and 2003; he was the sixth player to win the award multiple times. He was also the second linebacker to win the Super Bowl Most Valuable Player Award and the first linebacker to win the award on the winning Super Bowl team
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One of the NFL’s greats and future Hall of Famer Ray Lewis is an inspiration to people all over the world. The struggles and hardship he endured light a fire in him to strive for better even when the cards weren’t in his favor. His dedication made him into a strong and wise leader of a Super Bowl winning team. As a motivational speaker as well he helps people get confidence to make something of themselves no matter what. His story lets people know that even though times get rough if you fight and
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newspaper headlines. In Scene 8 we are introduced to the character Dawn. This scene explores the complexity of the baby-sitter as a character. Dawn is an opposite character relating to Ray and Sylvie‚ just as they have lost their daughter‚ Dawn has lost her parents. This meeting between Ray and Dawn also provides the audience with another side to Ruby that was not previously known- “Real mean streak.” This idea that Ruby is not as innocent as she seems is continuously forced upon the
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dots in the centre of the incident and reflected rays. Move the mirror to one side and use the ruler to join the dots to show the complete path of the ray. Add arrows so you know which direction the ray travelled. At the point where the ray reflects from the mirror add a line perpendicular to the mirrors surface - this is the normal line. Use the protractor measure the angle between the normal and the incident ray‚ and the normal and the reflected ray. Note these angles in a table and then repeat
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takes place. a) Wood b) Polished surface c) Mirror d) Marble surface e) Chalk powder Q5. What is the angle of reflection if the angle between the incident ray and the reflected ray is 90? Q6. Give one word for the following: 1. The invisible energy which causes in use the sensation of vision. 2. The ray of light which travels towards a mirror. 3. A line which is drawn at right angles to the mirror surface at the point of incidence. 4. Name one type of mirror which always
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