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Motion in One Dimension
Motion in One Dimension

... A block of mass m1 = 20.0 kg is connected to a block of mass m2 = 30.0 kg by a massless string that passes over a light, frictionless pulley. The 30.0-kg block is connected to a spring that has negligible mass and a force constant of k = 250 N/m as shown. The spring is unstretched when the system is ...
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... A group of objects from which you can measure a position or motion is a ________________. _______________ is the product of mass Momentum multiplied by velocity. momentum position ...
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tri-quarterly practice answers



... 74. Base your answer to the following question on the following information. In the diagram below, a 10.-kilogram sphere, A, is projected horizontally with a velocity of 30. meters per second due east from a height of 20. meters above level ground. At the same instant, a 20.-kilogram sphere, B, is ...
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Physics 130 - University of North Dakota
Physics 130 - University of North Dakota

... Newton’s 2nd Law It tells us how much acceleration an object has and depends on the object’s mass as well as the net force on the object. acceleration = force (Weight)  mass a = W/m = mg/m = g a = g in number, not in concept! 2nd law W = mg (this is NOT the 2nd law) ...
Gravity, Air Resistence, Terminal Velocity, and Projectile Motion
Gravity, Air Resistence, Terminal Velocity, and Projectile Motion

... Gravity attracts all objects with mass inward towards other objects with ...
May 2011 - Maths Genie
May 2011 - Maths Genie

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PS Unit 2 Motion

... A baseball accelerates downward at 9.8 m/s2. If gravity is the only force acting on the baseball and is 1.4N, what is the baseball’s mass? ...
Circular Motion - hrsbstaff.ednet.ns.ca
Circular Motion - hrsbstaff.ednet.ns.ca

... the same rate that the satellite is falling to earth. Result: satellite doesn’t reach earth, but stays at a constant height above the planet. ...
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CHAPTER 5—NEWTON,EINSTEIN, AND GRAVITY

... c. be bent so that the stars are no longer visible. d. not be affected by the curvature of space-time. e. be focused so that the stars appear brighter than if space-time was not curved. The second postulate of special relativity states that a. observers cannot detect their uniform motion except rela ...
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... 13- A 200-g block is attached to a horizontal spring and executes simple harmonic motion with a period of 0.250 s. If the total energy of the system is 2.00 J, find (a) the force constant of the spring and (b) the amplitude of the motion. 14- A block–spring system oscillates with an amplitude of 3.5 ...
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... Upon collision, the clay and steel block stick together and move to the right with a speed of A) 1.5 m/s B) 2.0 m/s C) 3.0 m/s D) 6.0 m/s 3. A 2,400-kilogram car is traveling at a speed of 20. meters per second. Compared to the magnitude of the force required to stop the car in 12 seconds, the magni ...
Types of Variation
Types of Variation

... In physics and other sciences, many experiments are performed to obtain or test a relationship between two variables (manipulated and responding). Once the evidence is collected and analyzed, the relationship is expressed clearly and concisely using the concepts and language of mathematics. The math ...
Types of Variation
Types of Variation

... In physics and other sciences, many experiments are performed to obtain or test a relationship between two variables (manipulated and responding). Once the evidence is collected and analyzed, the relationship is expressed clearly and concisely using the concepts and language of mathematics. The math ...
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... with a bead of mass m free to slide along the hoop. We wish to determine the ODE that governs θ(t) This problem is a natural for spherical coordinates. The bead has spherical coordinates: r(t) = R constant. It has azimuthal coordinate φ = Ω t specified. Its other spherical coordinate is θ(t) which ...
Linear Momentum - White Plains Public Schools
Linear Momentum - White Plains Public Schools

... massless cord of length L. A child also of mass M sits on the seat and begins to swing with zero velocity at a position at which the cord makes a 60o angle with the vertical as shown in Figure I. The swing continues down until the cord is exactly vertical at which time the child jumps off in a horiz ...
Physics Final Exam Review Packet
Physics Final Exam Review Packet

... 1. A ball is thrown vertically upward with a speed of 25.0 m/s from a height of 2.0 m. a. How long does it take to reach its highest point? b. How high does the ball rise? c. How long does the ball take to hit the ground after it reaches the highest point? d. What is the ball’s velocity when it retu ...
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AP Physics B:

Abstract.
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... propagation, and finite bodies should be incapable of propagate at infinite speeds since that would require infinite energy. So instantaneous gravity seemed to have an element of magic to it. The second objection was that we had all been taught that Einstein's special relativity (SR), an experimenta ...
< 1 ... 101 102 103 104 105 106 107 108 109 ... 170 >

Faster-than-light

Faster-than-light (also superluminal or FTL) communication and travel refer to the propagation of information or matter faster than the speed of light.Under the special theory of relativity, a particle (that has rest mass) with subluminal velocity needs infinite energy to accelerate to the speed of light, although special relativity does not forbid the existence of particles that travel faster than light at all times (tachyons).On the other hand, what some physicists refer to as ""apparent"" or ""effective"" FTL depends on the hypothesis that unusually distorted regions of spacetime might permit matter to reach distant locations in less time than light could in normal or undistorted spacetime. Although according to current theories matter is still required to travel subluminally with respect to the locally distorted spacetime region, apparent FTL is not excluded by general relativity.Examples of FTL proposals are the Alcubierre drive and the traversable wormhole, although their physical plausibility is uncertain.
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