physical science: force and motion I
... Most of us believe that four forces are all that are needed, but because we have seen remarkable new discoveries, we are willing to send a few of our colleagues off to search for an experiment which demands a fifth force. If you can show that five forces are needed to explain the universe, I guarant ...
... Most of us believe that four forces are all that are needed, but because we have seen remarkable new discoveries, we are willing to send a few of our colleagues off to search for an experiment which demands a fifth force. If you can show that five forces are needed to explain the universe, I guarant ...
Lecture07-09
... forces on it are N (up) and mg (down), so N must be greater than mg in order to give the net upward force! Follow-up: What is the normal force if the elevator is in free fall downward? ...
... forces on it are N (up) and mg (down), so N must be greater than mg in order to give the net upward force! Follow-up: What is the normal force if the elevator is in free fall downward? ...
Stacey Carpenter
... The word momentum is often used to describe something moving that will be hard to stop or turn. Does that sound like anything we've studied? How about Newton's 1st Law of Motion? If something is hard to stop or turn, that means it has a lot of inertia, or mass. And if it is moving, that means it has ...
... The word momentum is often used to describe something moving that will be hard to stop or turn. Does that sound like anything we've studied? How about Newton's 1st Law of Motion? If something is hard to stop or turn, that means it has a lot of inertia, or mass. And if it is moving, that means it has ...
Chap06_lecture
... Newton’s laws: Relations between motions of bodies and the forces acting on them. Newton’s first law: A body at rest remains at rest, and a body in motion remains in motion at the same velocity in a straight path when the net force acting on it is zero. Therefore, a body tends to preserve its state ...
... Newton’s laws: Relations between motions of bodies and the forces acting on them. Newton’s first law: A body at rest remains at rest, and a body in motion remains in motion at the same velocity in a straight path when the net force acting on it is zero. Therefore, a body tends to preserve its state ...
File
... approximated by dividing the distance up into small pieces, finding the work done during each, and adding them up. As the pieces become very narrow, the work done is the area under the force vs. distance curve. ...
... approximated by dividing the distance up into small pieces, finding the work done during each, and adding them up. As the pieces become very narrow, the work done is the area under the force vs. distance curve. ...
Chapter 1 INTRODUCTION AND BASIC CONCEPTS
... Newton’s laws: Relations between motions of bodies and the forces acting on them. Newton’s first law: A body at rest remains at rest, and a body in motion remains in motion at the same velocity in a straight path when the net force acting on it is zero. Therefore, a body tends to preserve its state ...
... Newton’s laws: Relations between motions of bodies and the forces acting on them. Newton’s first law: A body at rest remains at rest, and a body in motion remains in motion at the same velocity in a straight path when the net force acting on it is zero. Therefore, a body tends to preserve its state ...
Chapter #5 energy-homework
... 4. What happens to an object’s velocity if there is work done by a friction force? Why? 5. An object is suspended from a spring and is at equilibrium; does the elastic force do any work? 6. It is known that water applies some pressure on a container; does water do any work in this case? 7. What kind ...
... 4. What happens to an object’s velocity if there is work done by a friction force? Why? 5. An object is suspended from a spring and is at equilibrium; does the elastic force do any work? 6. It is known that water applies some pressure on a container; does water do any work in this case? 7. What kind ...
Simple Harmonic Motion and Elastic Energy
... (I am going to walk you through this one and then you will need to try the next one before getting the answer off line…) 1. The given expression describes the vibration by telling the position at every instant of time as it continually changes. Think about a treetop swaying in the wind while you are ...
... (I am going to walk you through this one and then you will need to try the next one before getting the answer off line…) 1. The given expression describes the vibration by telling the position at every instant of time as it continually changes. Think about a treetop swaying in the wind while you are ...
The Force
... Inertial mass Relates to how a mass responds to an external force (also called a contact force). If you push a stalled car into motion you are testing its inertial mass. Gravitational mass Relates to how a mass responds to the force of gravity (also called a field force). If you lift up a stalled ca ...
... Inertial mass Relates to how a mass responds to an external force (also called a contact force). If you push a stalled car into motion you are testing its inertial mass. Gravitational mass Relates to how a mass responds to the force of gravity (also called a field force). If you lift up a stalled ca ...
The Physics of Renewable Energy
... b) What are the states of the cart before and after the change? At the top the cart has an initial height of 10 meters and zero velocity. At the bottom it has zero height and non-zero velocity. c) Write down a statement of conservation of energy for the cart. ...
... b) What are the states of the cart before and after the change? At the top the cart has an initial height of 10 meters and zero velocity. At the bottom it has zero height and non-zero velocity. c) Write down a statement of conservation of energy for the cart. ...
Document
... • Work of the force exerted by spring is positive when x2 < x1, i.e., when the spring is returning to its undeformed position. • Work of the force exerted by the spring is equal to negative of area under curve of F plotted against x, U12 12 F1 F2 x ...
... • Work of the force exerted by spring is positive when x2 < x1, i.e., when the spring is returning to its undeformed position. • Work of the force exerted by the spring is equal to negative of area under curve of F plotted against x, U12 12 F1 F2 x ...
Curriculum Map
... differential equation that follows from Newton’s Second Law. 3) I can derive an expression for the acceleration as a function of time for an object falling under the influence of drag forces. ...
... differential equation that follows from Newton’s Second Law. 3) I can derive an expression for the acceleration as a function of time for an object falling under the influence of drag forces. ...
phy211_4 - Personal.psu.edu
... If an object has zero component of acceleration in a certain direction then there is a NET FORCE of ZERO acting on the object in that direction Newtons Laws and circular motion acceleration associated with uniform circular motion must be produced a force ...
... If an object has zero component of acceleration in a certain direction then there is a NET FORCE of ZERO acting on the object in that direction Newtons Laws and circular motion acceleration associated with uniform circular motion must be produced a force ...