Electric Fields - the SASPhysics.com
... Electric and gravitational fields • Similarities – For point charges or masses, the variation of force with distance follows the inverse square law. – Both exert a force from a distance, with no contact. – The field strength of both is defined in terms of force per unit of the property of the obje ...
... Electric and gravitational fields • Similarities – For point charges or masses, the variation of force with distance follows the inverse square law. – Both exert a force from a distance, with no contact. – The field strength of both is defined in terms of force per unit of the property of the obje ...
Force 1
... directed at a known angle as shown in the figure, derive an algebraic expression for the magnitude F2 of the second force, and for the angle . F1 F2 ...
... directed at a known angle as shown in the figure, derive an algebraic expression for the magnitude F2 of the second force, and for the angle . F1 F2 ...
Physics 6B Practice midterm 1
... stroke. B) If the piston has mass 0.450 kg, what net force must be exerted on it at this point? C) What are the speed and kinetic energy of the piston at the midpoint of its stroke? ...
... stroke. B) If the piston has mass 0.450 kg, what net force must be exerted on it at this point? C) What are the speed and kinetic energy of the piston at the midpoint of its stroke? ...
Chap.5 - KFUPM Faculty List
... Recitation on Chapter 5: Force and Motion A. Newtons 2nd Law Q1. Only two forces act upon a 5.0 kg box. One of the forces is . If the box moves at a constant velocity of ...
... Recitation on Chapter 5: Force and Motion A. Newtons 2nd Law Q1. Only two forces act upon a 5.0 kg box. One of the forces is . If the box moves at a constant velocity of ...
Conservative forces
... The potential energy is an important concept in simulations because it allows us to calculate the force on each particle due to interactions with other particles, with walls, with external fields (electric, gravitational), etc. Imagine you have three particles, 1, 2, and 3, each of mass m and charge ...
... The potential energy is an important concept in simulations because it allows us to calculate the force on each particle due to interactions with other particles, with walls, with external fields (electric, gravitational), etc. Imagine you have three particles, 1, 2, and 3, each of mass m and charge ...
Muscle Contractions
... Isometric contraction, is one in which the muscle is activated, but instead of being allowed to lengthen or shorten, it is held at a constant length. An example of an isometric contraction would be carrying an object in front of you. The weight of the object would be pulling downward, but your hands ...
... Isometric contraction, is one in which the muscle is activated, but instead of being allowed to lengthen or shorten, it is held at a constant length. An example of an isometric contraction would be carrying an object in front of you. The weight of the object would be pulling downward, but your hands ...
Equilibrium Notes
... Because in both case the net force on the objects is zero they are said to be in ___________________. If the object is stationary it is said to be in ______________________________, while an object moving at a constant velocity is in _______________________________. These are both case where the obj ...
... Because in both case the net force on the objects is zero they are said to be in ___________________. If the object is stationary it is said to be in ______________________________, while an object moving at a constant velocity is in _______________________________. These are both case where the obj ...
on forces
... is zero the object continues in its original state of motion; if it was at rest, it remains at rest. If it was moving with a certain velocity, it will keep on moving with the same velocity. Second Law: The acceleration of an object is proportional to the net force acting on it, and inversely propo ...
... is zero the object continues in its original state of motion; if it was at rest, it remains at rest. If it was moving with a certain velocity, it will keep on moving with the same velocity. Second Law: The acceleration of an object is proportional to the net force acting on it, and inversely propo ...
File - PHYSICS AP/DUAL
... Electrostatics: 2 – Electric Field on a Single Charge Name: ____________________________________________________Period: _______ Date: _______ There are many similarities between gravitational and electrostatic forces. One such similarity is that both forces can be exerted on objects that are not in ...
... Electrostatics: 2 – Electric Field on a Single Charge Name: ____________________________________________________Period: _______ Date: _______ There are many similarities between gravitational and electrostatic forces. One such similarity is that both forces can be exerted on objects that are not in ...
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.