Tuesday, June 3, 2008
... Newton’s First Law Aristotle (384-322BC): A natural state of a body is rest. Thus force is required to move an object. To move faster, ones needs larger forces. Galileo’s statement on natural states of matter: Any velocity once imparted to a moving body will be rigidly maintained as long as the ext ...
... Newton’s First Law Aristotle (384-322BC): A natural state of a body is rest. Thus force is required to move an object. To move faster, ones needs larger forces. Galileo’s statement on natural states of matter: Any velocity once imparted to a moving body will be rigidly maintained as long as the ext ...
Hooke`s Law Problems
... 3. A 5.0 g pellet is placed in the barrel of a toy gun and is propelled by a spring of force constant 50 N/m that has been compressed 20 cm and then released. Calculate the maximum velocity of the pellet when shot horizontally. (20 m/s) 4. The force-deformation graph for a non-Hooke's Law spring is ...
... 3. A 5.0 g pellet is placed in the barrel of a toy gun and is propelled by a spring of force constant 50 N/m that has been compressed 20 cm and then released. Calculate the maximum velocity of the pellet when shot horizontally. (20 m/s) 4. The force-deformation graph for a non-Hooke's Law spring is ...
Chapter 10 – Rotation and Rolling
... Rotation axis: every point of a body moves in a circle whose center lies on the rotation axis. Every point moves through the same angle during a particular time interval. Reference line: fixed in the body, perpendicular to the rotation axis and rotating with the body. Angular position: the angle of ...
... Rotation axis: every point of a body moves in a circle whose center lies on the rotation axis. Every point moves through the same angle during a particular time interval. Reference line: fixed in the body, perpendicular to the rotation axis and rotating with the body. Angular position: the angle of ...
Chapter 4: Newton`s Second Law of Motion
... Recall last time: when the force of gravity is the only force (negligible air resistance), then the object is in “free-fall”. Question Since weight = mg = force of gravity on an object, heavier objects experience more gravitational force – so why don’t they fall faster than lighter ones ? Answer: Th ...
... Recall last time: when the force of gravity is the only force (negligible air resistance), then the object is in “free-fall”. Question Since weight = mg = force of gravity on an object, heavier objects experience more gravitational force – so why don’t they fall faster than lighter ones ? Answer: Th ...
Nature`s Forces, F due to Gravity, and Grav. Field
... _____________________________________________________________________________________ 2a Scientists believe that there are only four "natural" forces in the universe. These are: 1)______________________________________ 2) _______________________________________ 3) ___________________________________ ...
... _____________________________________________________________________________________ 2a Scientists believe that there are only four "natural" forces in the universe. These are: 1)______________________________________ 2) _______________________________________ 3) ___________________________________ ...
Exam #: Printed Name: Signature: PHYSICS DEPARTMENT
... In a collision of two particles of masses m1 and m2 , the initial velocities are ~u1 6= 0 and ~u2 = α~u1 with α 6= 0. The initial kinetic energies of the two particles are equal. (a) What value(s) can α have? (b) Find the numerical value of m1 /m2 such that m1 will be at rest after the collision in ...
... In a collision of two particles of masses m1 and m2 , the initial velocities are ~u1 6= 0 and ~u2 = α~u1 with α 6= 0. The initial kinetic energies of the two particles are equal. (a) What value(s) can α have? (b) Find the numerical value of m1 /m2 such that m1 will be at rest after the collision in ...
Physics
... First Law: Object remains at rest or uniform rotation as long as no net torque (net) acts on it a. measured as the moment of inertia, I = mr2 b. corrects for mass distribution ( = 1 for a hoop) c. equilibrium (net = 0) 1. center of mass for a complex system—balance point where an upward torque ...
... First Law: Object remains at rest or uniform rotation as long as no net torque (net) acts on it a. measured as the moment of inertia, I = mr2 b. corrects for mass distribution ( = 1 for a hoop) c. equilibrium (net = 0) 1. center of mass for a complex system—balance point where an upward torque ...
Problem Set #2a
... each wheel, as well as a friction force under each wheel (remember to look at the direction the wheel is turning). Finally, it should include a force from the trailer pulling backwards on the engine. b. The trailer should have all the force the engine has with the exception of a force from the engin ...
... each wheel, as well as a friction force under each wheel (remember to look at the direction the wheel is turning). Finally, it should include a force from the trailer pulling backwards on the engine. b. The trailer should have all the force the engine has with the exception of a force from the engin ...
conceptual physics c#39AC3E
... would see the pencil hovering. Is the pencil falling? Explain. Ans. Yes, the pencil is falling with the same acceleration and velocity that you are. Because you and the pencil are always falling at the same rate, it never reaches your feet. This is very similar to cars on the highway. If they are al ...
... would see the pencil hovering. Is the pencil falling? Explain. Ans. Yes, the pencil is falling with the same acceleration and velocity that you are. Because you and the pencil are always falling at the same rate, it never reaches your feet. This is very similar to cars on the highway. If they are al ...
A. Speed
... exerts a force on a second object, the second object exerts an equal and opposite force on the first. 1. In other words, for every action, there is an equal and opposite reaction. 2. Example – Mr. Castroll is moving on his skateboard at 10 m/sec when he hits a wall. When he hits the wall, he does so ...
... exerts a force on a second object, the second object exerts an equal and opposite force on the first. 1. In other words, for every action, there is an equal and opposite reaction. 2. Example – Mr. Castroll is moving on his skateboard at 10 m/sec when he hits a wall. When he hits the wall, he does so ...
Electric Fields - hrsbstaff.ednet.ns.ca
... Once we can find forces, we can use Newton’s laws to calculate all sorts of wondrous things. Like velocity or acceleration! ...
... Once we can find forces, we can use Newton’s laws to calculate all sorts of wondrous things. Like velocity or acceleration! ...
Physics AS7 hyperlink
... 13 A 0.10 kg mass is taken to Mars and then weighed on a spring balance and on a lever balance. The acceleration due to gravity on Mars is 38% of its value on Earth. What are the readings on the two balances on Mars? (Assume that on Earth g = 10 m s–2.) spring balance / N ...
... 13 A 0.10 kg mass is taken to Mars and then weighed on a spring balance and on a lever balance. The acceleration due to gravity on Mars is 38% of its value on Earth. What are the readings on the two balances on Mars? (Assume that on Earth g = 10 m s–2.) spring balance / N ...