Lecture 7 - University of California, Berkeley
... Diffusion occurs when there exists a concentration gradient In the figure below, imagine that we fill the left chamber with a gas at temperate T If we suddenly remove the divider, what happens? The gas will fill the entire volume of the new chamber. How does this occur? ...
... Diffusion occurs when there exists a concentration gradient In the figure below, imagine that we fill the left chamber with a gas at temperate T If we suddenly remove the divider, what happens? The gas will fill the entire volume of the new chamber. How does this occur? ...
Static Electricity
... • Any charged object - whether positively charged or negatively charged - will have an attractive interaction with a neutral object. – Positively charged objects and neutral objects attract each other; – Negatively charged objects and neutral objects attract each other. • In accordance with Newton's ...
... • Any charged object - whether positively charged or negatively charged - will have an attractive interaction with a neutral object. – Positively charged objects and neutral objects attract each other; – Negatively charged objects and neutral objects attract each other. • In accordance with Newton's ...
Chapter 4
... Kinematics - description of motion • Position, displacement, velocity, acceleration Dynamics - study of causes of motion • Aristotle’s observations (~350 B.C.): – A body would move only when subjected to a force. – Without a force acting on it, a body will come to rest. • Galileo”s experiments (~162 ...
... Kinematics - description of motion • Position, displacement, velocity, acceleration Dynamics - study of causes of motion • Aristotle’s observations (~350 B.C.): – A body would move only when subjected to a force. – Without a force acting on it, a body will come to rest. • Galileo”s experiments (~162 ...
Unit 4 Fields and Further Mechanics - complete
... A loaded helicopter has a mass of 2500 kg. The area swept out by its rotor blades is 180m2. If the downward flow of air supports 50% of the weight of the helicopter, what speed must be given to the air by the motion of the rotor blades when the helicopter is hovering? Take the density of air to be 1 ...
... A loaded helicopter has a mass of 2500 kg. The area swept out by its rotor blades is 180m2. If the downward flow of air supports 50% of the weight of the helicopter, what speed must be given to the air by the motion of the rotor blades when the helicopter is hovering? Take the density of air to be 1 ...
Freehold Regional High School District
... focusing on multiple representations of motion, the mechanics of moving objects and using the scientific method to solve real world problems. As the course progresses, the students will gain an understanding that the same basic principles and models govern the motion of all objects. They will gain t ...
... focusing on multiple representations of motion, the mechanics of moving objects and using the scientific method to solve real world problems. As the course progresses, the students will gain an understanding that the same basic principles and models govern the motion of all objects. They will gain t ...
Lecture 10 - University of California, Berkeley
... Drift current is low since the field only moves minority carriers across junction In fact, current is not zero but very small since the minority carrier concentration is low. Minority carriers within one diffusion length of junction can contribute to a reverse bias current. This is more or less inde ...
... Drift current is low since the field only moves minority carriers across junction In fact, current is not zero but very small since the minority carrier concentration is low. Minority carriers within one diffusion length of junction can contribute to a reverse bias current. This is more or less inde ...
Externals Revision Answers File
... Acceleration of 9.995m/s2 is just over gravity of 9.8m/s2 so there will be just over 1g of acceleration and force. Thus the tension of the string must be able to take 41N which is just over the weight force of 4.1x9.8=40.18N. Otherwise the string will break and the 4.1kg mass will travel off at cons ...
... Acceleration of 9.995m/s2 is just over gravity of 9.8m/s2 so there will be just over 1g of acceleration and force. Thus the tension of the string must be able to take 41N which is just over the weight force of 4.1x9.8=40.18N. Otherwise the string will break and the 4.1kg mass will travel off at cons ...
Free fall
In Newtonian physics, free fall is any motion of a body where its weight is the only force acting upon it. In the context of general relativity, where gravitation is reduced to a space-time curvature, a body in free fall has no force acting on it and it moves along a geodesic. The present article only concerns itself with free fall in the Newtonian domain.An object in the technical sense of free fall may not necessarily be falling down in the usual sense of the term. An object moving upwards would not normally be considered to be falling, but if it is subject to the force of gravity only, it is said to be in free fall. The moon is thus in free fall.In a uniform gravitational field, in the absence of any other forces, gravitation acts on each part of the body equally and this is weightlessness, a condition that also occurs when the gravitational field is zero (such as when far away from any gravitating body). A body in free fall experiences ""0 g"".The term ""free fall"" is often used more loosely than in the strict sense defined above. Thus, falling through an atmosphere without a deployed parachute, or lifting device, is also often referred to as free fall. The aerodynamic drag forces in such situations prevent them from producing full weightlessness, and thus a skydiver's ""free fall"" after reaching terminal velocity produces the sensation of the body's weight being supported on a cushion of air.