P1elec1
... To use the Conservation of Energy example, we need to have a change from one form of energy into another form. But in circular motion, the distance (and hence potential energy) stays the same, and the electron will orbit in a circular orbit at a constant velocity, so the kinetic energy does not chan ...
... To use the Conservation of Energy example, we need to have a change from one form of energy into another form. But in circular motion, the distance (and hence potential energy) stays the same, and the electron will orbit in a circular orbit at a constant velocity, so the kinetic energy does not chan ...
Chapter 27:
... • We’ve seen that there is a force on a charge moving in a magnetic field • Now we’re going to consider multiple charges moving together, such as a current in a conductor • We start with a wire of length l and cross section area A in a magnetic field of strength B with the charges having a drift vel ...
... • We’ve seen that there is a force on a charge moving in a magnetic field • Now we’re going to consider multiple charges moving together, such as a current in a conductor • We start with a wire of length l and cross section area A in a magnetic field of strength B with the charges having a drift vel ...
phys1444-fall11
... • Charles Coulomb figured this out in 1780’s. • Coulomb found that the electrical force is – Proportional to the multiplication of the two charges • If one of the charges doubles, the force doubles. • If both the charges double, the force quadruples. ...
... • Charles Coulomb figured this out in 1780’s. • Coulomb found that the electrical force is – Proportional to the multiplication of the two charges • If one of the charges doubles, the force doubles. • If both the charges double, the force quadruples. ...
Introduction to Electric Fields
... and the Electric Field of a Point Charge. Students individually complete a table summarizing the similarities and differences between the gravitational field of a planet and the electric field of a point charge (Question 14). Teacher leads a class discussion of similarities and differences. The ...
... and the Electric Field of a Point Charge. Students individually complete a table summarizing the similarities and differences between the gravitational field of a planet and the electric field of a point charge (Question 14). Teacher leads a class discussion of similarities and differences. The ...
Lesson 10 notes - Angular Measurement - science
... The instantaneous linear velocity at a point in the circle is usually given the letter v and measured in metres per second (m s-1). Speed is defined as the distance / time. For a circle, 1 complete circumference is 2r and T is the Time period for one rotation (T) So ...
... The instantaneous linear velocity at a point in the circle is usually given the letter v and measured in metres per second (m s-1). Speed is defined as the distance / time. For a circle, 1 complete circumference is 2r and T is the Time period for one rotation (T) So ...
Physic 231 Lecture 9
... Two skaters, an 100 kg man and a 50 kg woman, are standing on ice. Neglect any friction between the skate blades and the ice. By pushing the man, the woman is accelerated at 2 m/s2 in the direction of due west. What is the corresponding acceleration of the man? – a) 4 m/s2 due east – b) 1 m/s2 due e ...
... Two skaters, an 100 kg man and a 50 kg woman, are standing on ice. Neglect any friction between the skate blades and the ice. By pushing the man, the woman is accelerated at 2 m/s2 in the direction of due west. What is the corresponding acceleration of the man? – a) 4 m/s2 due east – b) 1 m/s2 due e ...
Weightlessness
Weightlessness, or an absence of 'weight', is an absence of stress and strain resulting from externally applied mechanical contact-forces, typically normal forces from floors, seats, beds, scales, and the like. Counterintuitively, a uniform gravitational field does not by itself cause stress or strain, and a body in free fall in such an environment experiences no g-force acceleration and feels weightless. This is also termed ""zero-g"" where the term is more correctly understood as meaning ""zero g-force.""When bodies are acted upon by non-gravitational forces, as in a centrifuge, a rotating space station, or within a space ship with rockets firing, a sensation of weight is produced, as the contact forces from the moving structure act to overcome the body's inertia. In such cases, a sensation of weight, in the sense of a state of stress can occur, even if the gravitational field was zero. In such cases, g-forces are felt, and bodies are not weightless.When the gravitational field is non-uniform, a body in free fall suffers tidal effects and is not stress-free. Near a black hole, such tidal effects can be very strong. In the case of the Earth, the effects are minor, especially on objects of relatively small dimension (such as the human body or a spacecraft) and the overall sensation of weightlessness in these cases is preserved. This condition is known as microgravity and it prevails in orbiting spacecraft.