turns‚ and kicks‚ dance is a representation of physics at its best and most elegant. Two dance moves in particular come to mind when I think of physics and its effects on dance. They are the grand jeté & projectile motion‚ and the glissade and friction. Grand jeté literally means big jump. It is a long horizontal jump‚ starting from one leg and landing on the other. It also appears as a split in the air. The goal of this move is to create an illusion to the audience that the dancer is floating through the air and also
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PHYSICAL SCIENCE I. HISTORICAL BACKGROUND A. Babylonians They recorded eclipses and they were able to predict future eclipses. They named the twelve divisions of the Zodiacs‚ divided the northern sky into constellation and gave their present names. Their priest recorded planetary motions especially those of Venus‚ geometry and mathematics were highly developed by these people. There were evidences of multiplication tables and tables of square and cubes. They created standards for measuring length
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really move? The whole idea behind the roller coaster is the transfer of energy. The conversion of potential energy to kinetic energy is what drives the roller coaster around the track. All the kinetic energy you need is produced upon descending the first hill. The roller coasters have different types of wheels to make the ride the most enjoyable to the rider. The friction wheels maintain lateral motion. Running wheels guide the roller coater on the track. The last set of wheels keeps the ride
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A hockey stick exerts an average force of 39N on a 0.2kg hockey puck over a displacement of 0.22m. if the hockey puck started from rest‚ what is the final velocity of the puck? Assume no friction. Your physics teacher walking with the aid of a cane approaches a skateboard of 3.5 kg lying on the side walk. Pushing with an angle of 60 degree down from the horizontal with his cane‚ he applies a force of 115N‚ which is enough to toll the skateboard out of his way. Calculate the initial acceleration
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form to another. Also the total amount of energy in a closed system never changes. Along with my wonderful partner Kelvin we thought that energy in a closed system will remain constant throughout unless there is an outside energy such as “work” or friction. We also discussed the differences and similarities between closed and open systems. We wanted to test this theory with the lab provided to us. Materials Before we start any lab we need the proper materials. The material Kelvin and I used for this
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determines how high your loops or hills can be? What determines how many features you can have in one roller coaster? Something that determines how high you’re loops and hills go is how much kinetic energy the coaster has before going into those loops and hills. If a coaster does not have enough kinetic energy to go up and around a loop or up a hill‚ then it will get stuck. Also‚ if the coaster carts don’t have enough space between them‚ they could get jammed depending on the hight of the loop
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causes the spring to become compressed. The stored energy in the coils of the spring is elastic potential energy. This extra energy provides the pogo stick with an extra amount of force on it’s way back up. With the uncoiling of the spring it releases kinetic energy causing you to get a higher bounce while doing the same amount of work with your legs because of the spring. First‚ I want to look at what a spring is and how exactly it works to create a mechanical advantage. Also‚ we need to be able to understand
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difference of momentum before and after collisions. Using the photo gates record the velocity of each cart‚ comparing momentum and kinetic energy to find the law. The experimental apparatus are two red carts in approximately same weight and a gold cart in lower weight than the red ones‚ a stable air track (blow a constant stream of air out through numerous tiny holes) with low friction and two photo gates. 2) Project description 2.1) Theory We should have the concept of momentum to disassociate velocity
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Grounding static charges can help prevent sparks near flammable fuels. Paint sprayers work better if the object and the paint have different charges. Photocopiers use electrostatic principles in their operation. Grounding wires prevent damage to electrical equipment. Electrostatic precipitators work by creating charged waste particles and using electrostatic attraction to remove the particles. A simple way to prevent static build-up on a car is to use a ground strap Airplanes use static wicks
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Conservation of Kinetic Energy Preparation Prepare for this week’s experiment by studying Newton’s Laws‚ linear momentum‚ and kinetic energy. Principles In this experiment you will study a collision where a moving object strikes and sticks to an initially motionless object. When the colliding objects stick together the collision is said to be completely inelastic. The net momentum of the system should not change‚ but the net kinetic energy of the system will decrease. The amount of kinetic energy
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