Assignment – Physics 1 1. Two carts‚ one twice the mass of the other‚ experience the same force for the same time. What is their difference in momentum? What is their difference in kinetic energy? 2. A 12 g bullet is fired horizontally into a 96 g wooden block initially at rest on a horizontal surface. After impact‚ the block slides 7.5 m before coming to rest. If the coefficient of kinetic friction between block and surface is 0.60‚ what was the speed of the bullet immediately before impact
Free Force Energy Classical mechanics
ARTICLE IN PRESS Progress in Aerospace Sciences 42 (2006) 85–128 www.elsevier.com/locate/paerosci The aerodynamics of propellers Quentin R. Waldà 102 Cape George Road‚ Port Townsend‚ WA 98368‚ USA Abstract The theory and the design of propellers of minimum induced loss is treated. The pioneer analysis of this problem was presented more than half a century ago by Theodorsen‚ but obscurities in his treatment and inaccuracies and limited coverage in his tables of the Goldstein circulation
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several illustrative images) Why did you choose this sport? List the physics principles that apply to your sport‚ and give specific examples of each. For example‚ all sports involve some sort of collision or impact. Thus the physics of momentum conservation and impulse apply. Include at least 3 relevant physics equations in your examples. Use a few images to illustrate your examples. Include at least 2 calculations in your presentation. To obtain data for your calculations you may (1) make measurements
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overlooked plight of black males By Michael Gerson‚ Published: December 13 A president’s first term is a fresh track in the snow. His second term moves on a set of rutted paths. The shiny cause has become a vast machine‚ its wheels spinning on internal impulses unrelated to presidential priorities or pressing needs. As President Obama moves toward his fourth State of the Union address‚ he will be looking for policies that appeal to the country‚ but he will also try to rekindle the purpose of his administration
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Higher Physics: Mechanics and the properties of matter Summary Notes Vectors Page 2 Equations of motion Page 7 Newton’s Second Law‚ energy and Power Page 14 Momentum and Impulse Page 18 Density and pressure Page 26 Gas Laws Page 30 Vectors A physical quantity is a measurable quantity. Physics is about the relationships between physical quantities. There are two kinds of physical quantity. One consists of a number of units‚ the other consists of a number
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quadriceps enters the eccentric phase the hamstring enters the concentric phase to apply force from the leg to the ground to create motion. This is known as gravity force. Internal force is applied at the before the start as the momentum from zero velocity‚ to a lot of momentum through the muscle contraction which is being produced internal and has a reaction force from the ground up. That gives you the ability to accelerate and generate speed. Figure1 Applying force during take-off in long jump-
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|Unit Load Method | |Principal of Conservation of Energy‚ KE = PE ([pic] |phase angle‚ [pic]rad |[pic] | |Principal of Conservation of Momentum: |Lowest critical speed = 1st whirling speed | | |[pic](If mass 1 & 2 is perfect collision) |= 1st wn = [pic]
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What is the speed of the two blobs stuck together immediately after the collision? A 10-kg bowling ball moving at 4 m/s bounces off a spring at about the same speed that it had before bouncing. What is the change in momentum of the bowling ball? A loaded freight car has 5 times as much mass as an empty freight car. If the loaded car coasts at 5 m/s and collides with and attaches to the empty car at rest‚ what will be the speed of both cars after collision? A
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Launching the BMW Z3 Roadster 1. Distinguish the characteristics of traditional and non-traditional (NT) marketing. Why Jim McDowell is compelled to experiment with NT tools? Note the different ways in which NT campaigns must be managed. Traditional Marketing: Traditional Marketing is an integrated process‚ taking a lot of manpower and advertising into the market‚ so as to achieve the needs of the actual or potential. In the marketing industry‚ factually‚ there is not a clear and unified definition
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What sport do most Americans think of when imaging a tough‚ brutal sport where you have to be big and strong to play? Football‚ the sport of hitting people over a pigskin ball which leads to multiple concussions and other head trauma. A sport whose players are usually compared to big‚ bulky‚ jock who are never usually the person who has the highest GPA in their class. But‚ what most people don’t realize is that Football is almost entirely a game of physics‚ angles‚ and probability with only a bit
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