Ideal Cable
... Although none of these assumptions is exactly correct, each is approximately correct for many real systems. Neglecting bending stiffness means assuming that the cable can change direction at a sharp corner, that is, a corner with zero radius. This is more nearly correct for a piece of twine or strin ...
... Although none of these assumptions is exactly correct, each is approximately correct for many real systems. Neglecting bending stiffness means assuming that the cable can change direction at a sharp corner, that is, a corner with zero radius. This is more nearly correct for a piece of twine or strin ...
UV practice
... More Practice! You will be given the following: • One object such as from those below or • A region with e-field lines indicated as in the example below • A location A and a location B • Either a positive or a negative small test charge that is moving from A to B. ...
... More Practice! You will be given the following: • One object such as from those below or • A region with e-field lines indicated as in the example below • A location A and a location B • Either a positive or a negative small test charge that is moving from A to B. ...
10 Friction File
... 2. How does the maximum force of static friction compare to the force being applied for an object that is just about to move? ________________________________________________________________________________ _____________________________________________________________________________________________ ...
... 2. How does the maximum force of static friction compare to the force being applied for an object that is just about to move? ________________________________________________________________________________ _____________________________________________________________________________________________ ...
Electric Field & Force
... Polarization: the redistribution of charge within a group of particles that produces an apparent charge on the surface of an object. When Polarized- net charge = 0 * No charge has actually been transferred. * Charge is only REDISTRIBUTED. Ex: A polar molecule- one side of the molecule is more positi ...
... Polarization: the redistribution of charge within a group of particles that produces an apparent charge on the surface of an object. When Polarized- net charge = 0 * No charge has actually been transferred. * Charge is only REDISTRIBUTED. Ex: A polar molecule- one side of the molecule is more positi ...
Final Review with pictures
... maintain the constant velocity c. Both have the same momentum. 86. When you jump off a step, you usually bend your knees as you reach the ground. By doing this, the time of the impact is about 10 times more what it would be in a stiff-legged landing and the average force on your body is reduced by _ ...
... maintain the constant velocity c. Both have the same momentum. 86. When you jump off a step, you usually bend your knees as you reach the ground. By doing this, the time of the impact is about 10 times more what it would be in a stiff-legged landing and the average force on your body is reduced by _ ...
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.