The Greek Waiters tray is a unique apparatus to study. It uses the idea of centripetal force and centripetal acceleration to allow a waiter to effortlessly deliver drinks to a table without the fear of spilling them. The operation of this apparatus is also very unique. The waiters will typically have the cup placed in the exact center of the plate. As the tray is picked up the tray will begin to swing freely in the waiter’s hand. Although the Greek Waiters Tray was not typically swung in a full rotation, a waiter could have easily done this without the cup falling off. The most difficult part about swing it in a full rotation would have been stopping it. If the waiter tried to stop the tray after it had been rotating, the cup could have …show more content…
This question can be answered by having an understanding of centripetal acceleration and centripetal force. Centripetal force described as “the force that keeps an object in its uniform circular motion.”5 The centripetal force in the Greek Waiters Tray is provided by the waiter’s arm.6 Centripetal acceleration is described as “the acceleration needed to keep an object moving in circular motion.”7 The centripetal acceleration is provided by the plate of the Greek Waiters Tray. As the Greek Waiters Tray is begins to be swung through a rotation the The cup will stay on the plate throughout the entire rotation because it will be moving in a circular motion. We can see that moving in a circular motion will cause it to stay on the plate because of the equation v= ωr. This equation relates the angular velocity (ω) and the linear velocity (v). When the cup is placed at the very center of the plate the radius (r) will equal zero. When zero is put into the equation for r, the right side of the equation will equal zero, leaving us with the equation v=0. Because v is the linear velocity, we can see that the cup will not move in a straight line, rather a circular …show more content…
In this position the cup and plate will be sideways but they will not fall off of the tray. The cup will stay on the plate because of the centripetal acceleration acting on it. With the cup in the center of the tray, since centripetal acceleration is always directed toward the center of an object, it will have equal amounts of centripetal acceleration action on it. Without the centripetal acceleration the cup would continue to move in a straight path due to its inertial tendency. This can be illustrated by thinking about what happens when a car takes a sudden turn. The passengers will continue to move in a straight line until acted on by an outside force, such as the car door or another
The biomechanical principle stability for a pirouette is primarily concerned with the center of mass
The Purpose of this lab is to use the impulse and momentum concepts to explain what happens when the eggs are dropped onto various objects.
The Rococo idiom began to have an impact the American colonies. The Rococo styles were applied to on vessels. The silver trays had designs around that are carefully designed. The flat part of the silver tray had designs that interact with each other. The Tea server design is astonishing. The way the design are being mold on it. There is not any part of the tea server that has no design. I am surprised on how the people are able to design this piece of work. In reality, these items are pieces of artwork. My mother as well was astonished on the details the silver-plated tray and silver tea
coffee into the cup for Alicia, and sets it on a small table in front of her.
An important fact is that rice is not used to accompany the hot plate; on the contrary, the hot plates are used to accompany the rice. The broths and soups, unlike the West, are served several times as other foods. Soup usually is accompanied with fruits. On the table there should be 3 glasses of different sizes, the largest is used for drinking water, the medium for rice wine, and the smallest for liquor. The basic cover consists of a bowl, a plate, a pair of chopsticks, cup of tea and a porcelain spoon. Chopsticks are used to eat and to take food, but after lunch, they never are left in the plate, but next to the plate. People should not drink until the host has not raised his glass. A person never serves in its own glass; instead he serves to someone else, while that person will return the kindness. People should not be surprised if someone is slurping the soup while making a loud noise; it is the right way to prove that the soup is
That is to say, that the rock at the top of the tire may be going twice as fast as car itself. Similarly, at the point of contact of with the road, the velocity of the rock is 0.
An object remains at rest, or in motion, unless an external force acts upon it.
The Greeks have been known for their hospitality and politeness, especially when treating guests- whether strangers or not. This is demonstrated near the beginning of the Odyssey when Telemachus went to Pylos to visit Nestor. Nestor, not knowing who he was taking into his home as guests, treated them with great honor and respect. "Now is the time," he said, "for a few questions, now that our young guests have enjoyed their dinner. Who are you, strangers? Where are you sailing from, and where to, down the highways of sea water (p 299)?" If ever Greeks were to serve themselves before their guests or even a little better than them, then they were breaking the most basic of all Greek customs, for this tradition of hospitality was passed down from generation to generation, and breaking it would bring embarrassment and dishonor upon the home.
When it comes to hospitality, Greeks stand atop the list of all cultures for their generosity and politeness towards strangers. “Philoxenia” is the Greek word for “the love of strangers”. Philoxenia is demonstrated in several different cases in Homer’s The Odyssey. According to Greek customs, hospitality is respected by the immortal gods. If the Greek code of hospitality is not performed correctly, or not performed at all, the consequences may be very severe, gods may unleash their wrath to whoever does not follow this tradition of thoughtfulness. Homer suggests both positive and negative commentary on his own world through the examples of hospitalities that provide The Odyssey.
The application of force on an object causes an acceleration of that object. Yet, force is not the only factor in the movement, or acceleration of an object. The two main influences on the acceleration of an object are net force and mass. For example, net force is directly proportional to acceleration while mass is inversely proportional to acceleration. Other factors such as the friction, air or fluid resistance, and pressure effect the acceleration as well. All of these factors do not work against or in accordance with acceleration in the same way. Friction works in opposition to acceleration. Friction involves two objects that are in direct contact with on another but are moving in different directions. Involved with friction is air and fluid resistance. Fluid resistance, such as liquids or gases, focuses on when the object is moving in the opposite direction of a fluid flow or through a dense area of fluid. Air resistance involves movement through the air. The most noticeable effect of air resistance is when and object travels into a strong breeze or wind. And finally pressure, pressure refers to an applied force. With pressure you will find that the overall weight of and object doesn’t change no matter how you stand or lay it but you will feel more pressure from that same object depending on the force compared to the amount of surface area. The weight of the object
The Quest for the Holy Grail was the greatest and noblest of all quests for King Arthur's Knights of the Round Table. The Holy Grail was believed to be the cup used by Jesus Christ at the Last Supper, and it was the cup that caught Christ's blood when he was thrust in the side with a spear at his crucifixion. Joseph of Arimathea, the wealthy man who allowed Christ to be placed in his tomb, is said to have brought the cup with him to Britain, but it was later lost. It was said that the cup disappeared because of the sins of the times, but many believed it to be hidden, and still in England. The Quest for the Holy Grail, led by King Arthur was to find this divine cup.
According to mechanical physics, a force is an effect that may cause a body to accelerate. Also as stated in Isaac Newton’s second law of motion, force is a vector quantity (has magnitude and direction) that is proportional to the product of the mass of a body and its acceleration.
The Holy Grail, according to legend and “Indiana Jones,” is the cup that Jesus and his disciples drank from during the last supper. Later writings also tell that the cup was used to catch Jesus's blood while he was being crucified. While sometimes depicted as a rather fancy, jeweled chalice, it is much more likely that Jesus, the poor son of a carpenter, would have drunk from a simple wooden cup (Ford).
an actual coffee cup, not the insulated travel ones, because I like the warmth the coffee brings to