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September 2002 - GF Abela Junior College
September 2002 - GF Abela Junior College

PHYS101 Sec 001 Hour Exam No. 3 Page: 1
PHYS101 Sec 001 Hour Exam No. 3 Page: 1

... 18 Suppose that observers on Earth nd that an asteroid collides with the planet Mars at exactly the same time that a comet collides with the earth. If a spaceship ying from Earth toward Mars observes these catastrophes, it will calculate that a. both happen at the same time. b. Earth get hit before ...
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PHYSICS 110 Laboratory

... Think about an object falling under the influence of gravity. In this case, instead of ignoring the effects of air resistance we want to include them. So, in this case, we can think of two forces acting on the object. The first is gravity, which always acts downward. We know that we can identify the ...
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... in motion with the same speed and in the same direction unless acted upon by an unbalanced force. Put another way, first law says that if an object is not pushed or pulled upon, its velocity (speed & direction) will naturally remain constant. This means that if an object is moving along, untouched b ...
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... a) Stone one strikes the ground first. b) Stone two strikes the ground first. c) The stones strike the ground at the same time. d) Stone one lands with a higher speed than stone two. e) Stone two lands with a higher speed than stone one. f) The stones land with the same speed. ...
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Y8-Physics-Keyword-L..

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∆x = vt And the area under the graph is the displacement

Physics GCSE Year 9
Physics GCSE Year 9

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What is a Photon? - Indian Academy of Sciences

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... balanced by a) weight of the displaced air b) force of propelled air c) vertical component of the thrust created by air current striking the lower surface of the plane. d) upward thrust created by the pressure difference between the upper and lower surfaces of the wings. 7. A ball is dropped from a ...
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... 35. Matt with a mass of 125 kg is running at a velocity of 10 m/s. What is his momentum? a. 1250 kg b. 125 kg/m/s c. 1250 m/s/s d. 1250 kg/m/s 36. The force of an object, with a certain mass is accelerating at a certain rate. The rate can be determined using the equation (Force = Mass X Acceleration ...
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... A moving car has the ability to do work on the light pole if it hits it. KE = ½ m v 2 ...
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... c. Suppose that the ball escaped from the roulette wheel while in the position shown, what will be the direction of motion of the ball as it exits the wheel? Justify your explanation. ...
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South Pasadena

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... Let’s see WHY it is directed towards the center. ...
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Physics: Principles and Applications, 6e Giancoli

... 2) The resultant of two vectors is the smallest when the angle between them is A) 0°. B) 45°. C) 90°. D) 180°. 3) Two displacement vectors have magnitudes of 5.0 m and 7.0 m, respectively. When these two vectors are added, the magnitude of the sum A) is 2.0 m. B) could be as small as 2.0 m, or as la ...
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Inertial Reference Frame B: Not an inertial reference frame A

... When you weigh yourself, you stand on a spring scale and compress a spring. With that in mind, let’s define the weight of an object as the reading Fsp of a calibrated spring scale on which the object is stationary. Because Fsp is a force, weight is measured in Newtons. If the scale is at rest relati ...
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... Two shuffleboard disks of equal mass, one orange and the other green, are involved in a perfectly elastic glancing collision. The green disk is initially at rest and is struck by the orange disk moving initially to the right at 5.00 m/s as in Figure (a) below. After the collision, the orange disk mo ...
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... Ride, stadium and plethron are ancient Greek units of measuring length. 1 ride equals 4 stadia and 1 stadium equals 6 plethra. In terms of modern units, 1 plethra is about 31 meter. Using this information calculate Pheidippides’ speed. Express your answer in km/hr by rounding off to the nearest inte ...
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... Let’s take some concrete values, mass=1, damp=2 and we shall take the time interval to be 1 second. So each second, the speed changes by -2 units. If we start with an initial speed of 10, then here’s how the speed will decrease: ...
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lcp 14: the physics of star trek

... Our strategy will be to devise a sequence of problems and invite you to consider a series of questions that would naturally occur to Captain Kirk and Mr. Spock in travelling on their journeys or planning them. Since this is an advanced assignment it will not be specifically spelled out what you must ...
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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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