Slide 1
... the product of the body mass m and its acceleration a Fnet = ma; a= Fnet / m Acceleration component along a given axis is caused only by sum of forces component along that axis ax = Fnet,x /m ; ay = Fnet,y /m ; az = Fnet,z /m SI unit of force Newton (N) 1N= 1kg.m/s2 ...
... the product of the body mass m and its acceleration a Fnet = ma; a= Fnet / m Acceleration component along a given axis is caused only by sum of forces component along that axis ax = Fnet,x /m ; ay = Fnet,y /m ; az = Fnet,z /m SI unit of force Newton (N) 1N= 1kg.m/s2 ...
Mrs
... _____ 46. Where does a satellite in an elliptical orbit have the greatest kinetic energy? a. at the point farthest from the planet b. at the point closet to the planet c. exactly at the point halfway to the planet _____ 47. Where does a satellite in an elliptical orbit have the greatest potential en ...
... _____ 46. Where does a satellite in an elliptical orbit have the greatest kinetic energy? a. at the point farthest from the planet b. at the point closet to the planet c. exactly at the point halfway to the planet _____ 47. Where does a satellite in an elliptical orbit have the greatest potential en ...
Newton`s Laws and Gravity Review
... A. 10 N to the right B. 10 N to the left C. 2 N to the right D. 2 N to the left 3. A 1500 kg car increases its speed by 2 m/s for each second of travel. What is the net force acting on the car? A. 750 N B. 1500 N C. 3000 N D. 6000 N 4. The tendency of a stationary object to resist being put into mot ...
... A. 10 N to the right B. 10 N to the left C. 2 N to the right D. 2 N to the left 3. A 1500 kg car increases its speed by 2 m/s for each second of travel. What is the net force acting on the car? A. 750 N B. 1500 N C. 3000 N D. 6000 N 4. The tendency of a stationary object to resist being put into mot ...
Name
... 10. A pumpkin with a mass of 500.0 kg sits on a level surface. You have tied a rope to the pumpkin on which you pull upward at an angle of 40.0 degrees with a force of 650.0 N. If the coefficient of friction between the pumpkin and the ground is 0.25 (a) what is the net force acting on the pumpkin? ...
... 10. A pumpkin with a mass of 500.0 kg sits on a level surface. You have tied a rope to the pumpkin on which you pull upward at an angle of 40.0 degrees with a force of 650.0 N. If the coefficient of friction between the pumpkin and the ground is 0.25 (a) what is the net force acting on the pumpkin? ...
Physics Lab Report Guide and Sample Report
... Obiective: State what you want to achieve in this experiment A formal way to do this is to state a question or hypothesis that you want to address. Method: You should include a summary of the lab procedure in your words; do not merely copy what is in the manual. This section should demonstrate your ...
... Obiective: State what you want to achieve in this experiment A formal way to do this is to state a question or hypothesis that you want to address. Method: You should include a summary of the lab procedure in your words; do not merely copy what is in the manual. This section should demonstrate your ...
PowerPoint Lecture Chapter 6
... A cart is pushed and undergoes a certain acceleration. Consider how the acceleration would compare if it were pushed with twice the net force while its mass increased by four. Then its acceleration would be a. one quarter. ...
... A cart is pushed and undergoes a certain acceleration. Consider how the acceleration would compare if it were pushed with twice the net force while its mass increased by four. Then its acceleration would be a. one quarter. ...
Phys 2102 Spring 2002
... In the film Farrell experiences normal gravity until he hits the core, then experiences a moment of weightlessness at the core, and then resumes normal gravity (in the opposite direction) as the train continues to the other side of the Earth. Decide if this is what really would happen (or if it is c ...
... In the film Farrell experiences normal gravity until he hits the core, then experiences a moment of weightlessness at the core, and then resumes normal gravity (in the opposite direction) as the train continues to the other side of the Earth. Decide if this is what really would happen (or if it is c ...
chapter7_PC
... A line drawn from the Sun to any planet sweeps out equal areas in equal time intervals. The square of the orbital period of any planet is proportional to cube of the average distance from the Sun to the planet. ...
... A line drawn from the Sun to any planet sweeps out equal areas in equal time intervals. The square of the orbital period of any planet is proportional to cube of the average distance from the Sun to the planet. ...
physics powerpoint review 1st
... 5. Excluding the force due to air pressure, there is only one force acting on a book lying at rest on a tabletop. 6. If a bicycle and a parked car have a head-on collision, the force of impact is greater on the bicycle. 7. A quantity that has both magnitude and direction is called a scalar. 8. When ...
... 5. Excluding the force due to air pressure, there is only one force acting on a book lying at rest on a tabletop. 6. If a bicycle and a parked car have a head-on collision, the force of impact is greater on the bicycle. 7. A quantity that has both magnitude and direction is called a scalar. 8. When ...
Study questions
... 14) You drop a bowling ball from the top of a tall building. One second later, you drop a pingpong ball from the same point. Neglecting air resistance, what can we say about the motion of the two balls? A) The bowling ball will hit the ground more than one second before the ping-pong ball. B) The bo ...
... 14) You drop a bowling ball from the top of a tall building. One second later, you drop a pingpong ball from the same point. Neglecting air resistance, what can we say about the motion of the two balls? A) The bowling ball will hit the ground more than one second before the ping-pong ball. B) The bo ...
First Semester Info and Final Review
... B) has been changed into kinetic energy of the fragments C) is less than the momentum of the projectile immediately before the explosion D) is more than the momentum of the projectile immediately before the explosion E) has been changed into radiant energy 37. Two objects, X and Y, are held at rest ...
... B) has been changed into kinetic energy of the fragments C) is less than the momentum of the projectile immediately before the explosion D) is more than the momentum of the projectile immediately before the explosion E) has been changed into radiant energy 37. Two objects, X and Y, are held at rest ...
Chapter 3
... • Defined as the absolute value of the ratio of the velocity of separation to the velocity of approach • Velocity of separation is the difference between the velocities of the two colliding objects just after the collision • Velocity of approach is the difference between the velocities of the two co ...
... • Defined as the absolute value of the ratio of the velocity of separation to the velocity of approach • Velocity of separation is the difference between the velocities of the two colliding objects just after the collision • Velocity of approach is the difference between the velocities of the two co ...
waves2 - World of Teaching
... a = (r ω)² / r = r ω² is the alternative equation for centripetal acceleration • F = m r ω² is centripetal force ...
... a = (r ω)² / r = r ω² is the alternative equation for centripetal acceleration • F = m r ω² is centripetal force ...
Forces
... Is an object being pulled? Is it being pushed? Of course, as always, this fact that identifies a force has to be integrated into our scientific understanding carefully so that there is a real ...
... Is an object being pulled? Is it being pushed? Of course, as always, this fact that identifies a force has to be integrated into our scientific understanding carefully so that there is a real ...
Chapter 7
... A line drawn from the Sun to any planet sweeps out equal areas in equal time intervals. The square of the orbital period of any planet is proportional to cube of the average distance from the Sun to the planet. ...
... A line drawn from the Sun to any planet sweeps out equal areas in equal time intervals. The square of the orbital period of any planet is proportional to cube of the average distance from the Sun to the planet. ...
Ch5CTa
... Answer: Both cars have the same acceleration. Acceleration is the rate of change of velocity: a = dv/dt. Both cars have a velocity vector which is changing in the same way. (Since this is circular motion with constant speed, the direction of the acceleration is toward the center of the circle and th ...
... Answer: Both cars have the same acceleration. Acceleration is the rate of change of velocity: a = dv/dt. Both cars have a velocity vector which is changing in the same way. (Since this is circular motion with constant speed, the direction of the acceleration is toward the center of the circle and th ...
Supermassive Black Holes in Inactive Galaxies Encyclopedia of Astronomy & Astrophysics eaa.iop.org
... small as –1 each. In fact, they can largely cancel the first two terms, because the second term cannot be larger than +1, and the first is ≃1 in many galaxies. This explains why ad hoc anisotropic models have been so successful in explaining the kinematics of giant ellipticals without BHs. However, ...
... small as –1 each. In fact, they can largely cancel the first two terms, because the second term cannot be larger than +1, and the first is ≃1 in many galaxies. This explains why ad hoc anisotropic models have been so successful in explaining the kinematics of giant ellipticals without BHs. However, ...
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.