The Milky Way * A Classic Galaxy
... Sequence Fitting for those in star clusters. First and best example: bright open cluster M23 has a Cepheid. As of 1999, 29 more clusters now known to have Cepheids. • Cepheid PL relation has much less noise if brightnesses measured in the Infrared, which is what is always done these days. • By “Ceph ...
... Sequence Fitting for those in star clusters. First and best example: bright open cluster M23 has a Cepheid. As of 1999, 29 more clusters now known to have Cepheids. • Cepheid PL relation has much less noise if brightnesses measured in the Infrared, which is what is always done these days. • By “Ceph ...
20 pm - Starmap
... Many deep sky objects like galaxies and clusters will be within reach. Jupiter satellites and Saturn’s rings will also be visible. A spectacular experience for beginners in astronomy... ...
... Many deep sky objects like galaxies and clusters will be within reach. Jupiter satellites and Saturn’s rings will also be visible. A spectacular experience for beginners in astronomy... ...
Newtons Laws I
... e. Enter the collected data into Excel to produce the appropriate graph, with both horizontal and vertical error bars, to address the research question. Save all data and the graph on a personal storage device. f. Using the graph, determine the mathematical relationship between acceleration and appl ...
... e. Enter the collected data into Excel to produce the appropriate graph, with both horizontal and vertical error bars, to address the research question. Save all data and the graph on a personal storage device. f. Using the graph, determine the mathematical relationship between acceleration and appl ...
Physics Ch. 7 Rotational Motion
... Fig. 7-11 shows the direction the ball follows if the force vanishes. ...
... Fig. 7-11 shows the direction the ball follows if the force vanishes. ...
AP Physics Review Sheet 1
... 2. If the problem involves a ramp, rotate the x- and y-axes so that the x-axis corresponds to the surface of the ramp. 3. Construct a vector table including all of the forces in the free-body diagram. For the vector table’s column headings, use vector, x-direction, and y-direction. 4. Determine the ...
... 2. If the problem involves a ramp, rotate the x- and y-axes so that the x-axis corresponds to the surface of the ramp. 3. Construct a vector table including all of the forces in the free-body diagram. For the vector table’s column headings, use vector, x-direction, and y-direction. 4. Determine the ...
rocket labtm - Estes Rockets
... pulling the ball downward. Their hands are pushing against the ball to hold it up.The forces acting on the ball are balanced. When the ball stays at rest with no unbalanced forces to act on it is called static inertia. When students let the ball go or move their hand upward, the ball changes from a ...
... pulling the ball downward. Their hands are pushing against the ball to hold it up.The forces acting on the ball are balanced. When the ball stays at rest with no unbalanced forces to act on it is called static inertia. When students let the ball go or move their hand upward, the ball changes from a ...
force - Cloudfront.net
... Acceleration is a vector quantity, thus a force can induce a change in _________ or a _______________. The applied force and the resulting acceleration are also dependent upon the _________ of the object. ...
... Acceleration is a vector quantity, thus a force can induce a change in _________ or a _______________. The applied force and the resulting acceleration are also dependent upon the _________ of the object. ...
SC81 Physics Curriculum Map 2010/2011 Revised 7/29/2010
... Quantify interactions between objects to show that the total momentum is conserved in both collision and recoil situations. - Connect conservation of momentum to Newton’s 3rd Law - Calculate initial and final velocities using conservation of momentum. ...
... Quantify interactions between objects to show that the total momentum is conserved in both collision and recoil situations. - Connect conservation of momentum to Newton’s 3rd Law - Calculate initial and final velocities using conservation of momentum. ...
Newton`s First Law of Motion
... • If you are constantly accelerating, there must be a force acting on you the entire time. • The force exerted is the centripetal force and always points toward the center of the circle. • In circular motion the centripetal force is always perpendicular to the motion. ...
... • If you are constantly accelerating, there must be a force acting on you the entire time. • The force exerted is the centripetal force and always points toward the center of the circle. • In circular motion the centripetal force is always perpendicular to the motion. ...
Final 1
... 21. A wheel starts from rest and has an angular acceleration of 4.0 rad/s 2 . The time it takes to make 10 revolutions is: A. B. C. D. E. ...
... 21. A wheel starts from rest and has an angular acceleration of 4.0 rad/s 2 . The time it takes to make 10 revolutions is: A. B. C. D. E. ...
Ch 12 PowerPoint Notes
... objects is proportional to their masses. decreases with the square of the distance between the objects. Gravity is the weakest universal force, but it is the most effective force over long distances. ...
... objects is proportional to their masses. decreases with the square of the distance between the objects. Gravity is the weakest universal force, but it is the most effective force over long distances. ...
ANGULAR POSITION
... Example: In a microhematocrit centrifuge, small samples of blood are placed in capillary tubes. These tubes are rotated at 11,500rpm, with the bottom of the tubes 9.07cm from the axis of rotation. Find the linear speed of the bottom of the tubes. What is the centripetal acceleration at the bottom of ...
... Example: In a microhematocrit centrifuge, small samples of blood are placed in capillary tubes. These tubes are rotated at 11,500rpm, with the bottom of the tubes 9.07cm from the axis of rotation. Find the linear speed of the bottom of the tubes. What is the centripetal acceleration at the bottom of ...
Physics Midterm Review Multiple-Choice Questions
... 20. The position and the elapsed time of a motorbike are presented by the diagram. The motorbike starts from rest and accelerates at a constant rate. What is the acceleration of the motorbike? A. 0 m/s2 B. 2 m/s2 C. 4 m/s2 D. 6 m/s2 E. 8 m/s2 21. In order for a rocket ship in deep space, far from a ...
... 20. The position and the elapsed time of a motorbike are presented by the diagram. The motorbike starts from rest and accelerates at a constant rate. What is the acceleration of the motorbike? A. 0 m/s2 B. 2 m/s2 C. 4 m/s2 D. 6 m/s2 E. 8 m/s2 21. In order for a rocket ship in deep space, far from a ...
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.