Notes in pdf format
... Work, Energy and Power are scalar quantities. Let’s review the definitions: Work done on an object by a constant force is W = (F cosΘ)s, where F is the magnitude of the force, s the magnitude of the displacement and Θ the angle between the force and the displacement. The unit of work is Nm = J (Joul ...
... Work, Energy and Power are scalar quantities. Let’s review the definitions: Work done on an object by a constant force is W = (F cosΘ)s, where F is the magnitude of the force, s the magnitude of the displacement and Θ the angle between the force and the displacement. The unit of work is Nm = J (Joul ...
13-1 Gravity: A Force of Attraction
... dictionary of puns. The computer paired the terms related to forces with her goofy definitions, and it paired her pun-related terms with the real definitions. Help Penny unscramble the mismatched pairs and get her dictionaries back in order. ...
... dictionary of puns. The computer paired the terms related to forces with her goofy definitions, and it paired her pun-related terms with the real definitions. Help Penny unscramble the mismatched pairs and get her dictionaries back in order. ...
Worksheet - Uniform Circular Motion File
... 4. A mass of 5.0 kg is whirled in a horizontal circle at one end of a string 50 cm long, the other end being fixed. If the string when hanging vertically will just support a load of 200 kg mass without breaking, find the maximum whirling speed in m s-1. 5. Calculate the magnitude of the force requir ...
... 4. A mass of 5.0 kg is whirled in a horizontal circle at one end of a string 50 cm long, the other end being fixed. If the string when hanging vertically will just support a load of 200 kg mass without breaking, find the maximum whirling speed in m s-1. 5. Calculate the magnitude of the force requir ...
Page 1 Problem An electron is released from rest in a uniform
... and negative charges are of the same magnitude and placed symmetrically about the point where we are to find the field, the F components of both electric fields and are of the same magnitude but opposite direction. However, the G components are of the two electric fields are of the same ma ...
... and negative charges are of the same magnitude and placed symmetrically about the point where we are to find the field, the F components of both electric fields and are of the same magnitude but opposite direction. However, the G components are of the two electric fields are of the same ma ...
Study Guide for Physics Final Exam—1st semester
... to be the first woman to land on the moon, where the gravitational pull is 1/6 as much as earth’s. What would Betty’s mass be on the moon? Mass is not affected by gravity it is the “STUFF” in an object. Betty has just as much junk in her trunk on the moon as she has on Earth, so her mass is the same ...
... to be the first woman to land on the moon, where the gravitational pull is 1/6 as much as earth’s. What would Betty’s mass be on the moon? Mass is not affected by gravity it is the “STUFF” in an object. Betty has just as much junk in her trunk on the moon as she has on Earth, so her mass is the same ...
Class 11
... You have sphere of uniform charge. (The charge is spread out evenly throughout the sphere.) The charge is Q. The radius is R. •What is the Electric Field strength at point A where the distance from A to the center of the sphere is r A (rA > R). ...
... You have sphere of uniform charge. (The charge is spread out evenly throughout the sphere.) The charge is Q. The radius is R. •What is the Electric Field strength at point A where the distance from A to the center of the sphere is r A (rA > R). ...
template - charlestuttle
... 11. An 800. kg Geo Metro can go from rest to a speed of 36 m/s in 9.0s. What average net force acts on the car? ...
... 11. An 800. kg Geo Metro can go from rest to a speed of 36 m/s in 9.0s. What average net force acts on the car? ...
Newton`s Laws - Northern Highlands
... How much force is needed to accelerate a 2-kg soccer ball at a rate of 5 m/s2? ...
... How much force is needed to accelerate a 2-kg soccer ball at a rate of 5 m/s2? ...
The Sky is Our Laboratory
... • It is a group of galaxies bound together by gravity. The Milky Way and the Andromeda Galaxy are the two largest and most massive galaxies in the Local Group. ...
... • It is a group of galaxies bound together by gravity. The Milky Way and the Andromeda Galaxy are the two largest and most massive galaxies in the Local Group. ...
Ch 4 Review Worksheet
... 25) A boat moves through the water with two forces acting on it. One is a 2.10 X 10 3 N forward push by the motor and the other is a 1.80 x 103 N resistive force due to the water. a) What is the acceleration of the 1200 kg boat? ...
... 25) A boat moves through the water with two forces acting on it. One is a 2.10 X 10 3 N forward push by the motor and the other is a 1.80 x 103 N resistive force due to the water. a) What is the acceleration of the 1200 kg boat? ...
HW: Gravity practice
... 9. What are the units of G in the MKS (m-kg-sec) system? 10. Calculate the gravitational attraction between a proton of mass 1.67 x 10-27 kg and an electron of mass 9.11 x 10-31 kg if they are 5.0 x 10-11 m apart (as they are in a normal hydrogen atom). 11. Find the acceleration of a falling object ...
... 9. What are the units of G in the MKS (m-kg-sec) system? 10. Calculate the gravitational attraction between a proton of mass 1.67 x 10-27 kg and an electron of mass 9.11 x 10-31 kg if they are 5.0 x 10-11 m apart (as they are in a normal hydrogen atom). 11. Find the acceleration of a falling object ...
FORCES
... measure of force of gravity on an object Mass: measure of amount of matter in an object Weight = mass x 9.8 m/s2 ...
... measure of force of gravity on an object Mass: measure of amount of matter in an object Weight = mass x 9.8 m/s2 ...
Experiment 6 Newton`s Second Law A mass is allowed to fall
... Draw free-body diagrams for the two masses, m1 and m2 . Apply Newton's Second Law and derive (3). Complete the calculations of the average velocities for the data. First calculate the distance from one data point to the second data point away, s . Then find the average velocity by dividing s by th ...
... Draw free-body diagrams for the two masses, m1 and m2 . Apply Newton's Second Law and derive (3). Complete the calculations of the average velocities for the data. First calculate the distance from one data point to the second data point away, s . Then find the average velocity by dividing s by th ...
Modified Newtonian dynamics
In physics, modified Newtonian dynamics (MOND) is a theory that proposes a modification of Newton's laws to account for observed properties of galaxies. Created in 1983 by Israeli physicist Mordehai Milgrom, the theory's original motivation was to explain the fact that the velocities of stars in galaxies were observed to be larger than expected based on Newtonian mechanics. Milgrom noted that this discrepancy could be resolved if the gravitational force experienced by a star in the outer regions of a galaxy was proportional to the square of its centripetal acceleration (as opposed to the centripetal acceleration itself, as in Newton's Second Law), or alternatively if gravitational force came to vary inversely with radius (as opposed to the inverse square of the radius, as in Newton's Law of Gravity). In MOND, violation of Newton's Laws occurs at extremely small accelerations, characteristic of galaxies yet far below anything typically encountered in the Solar System or on Earth.MOND is an example of a class of theories known as modified gravity, and is an alternative to the hypothesis that the dynamics of galaxies are determined by massive, invisible dark matter halos. Since Milgrom's original proposal, MOND has successfully predicted a variety of galactic phenomena that are difficult to understand from a dark matter perspective. However, MOND and its generalisations do not adequately account for observed properties of galaxy clusters, and no satisfactory cosmological model has been constructed from the theory.