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1 - rummelobjectives
1 - rummelobjectives

... 1705 In response to the lack of wood for the hot fires required by smelters, brewers and iron makers, alternative fuel sources were being tried. In England coal was a fuel source for decades. Unfortunately, poisonous residues and thick, acrid smoke made it a bad fuel choice for many purposes. The be ...
Circular Motion - strikerphysics11
Circular Motion - strikerphysics11

... the angular acceleration of the CD during this time? If the CD comes to a stop in 4.0 sec, what is the angular acceleration during that part of the motion? A microwave oven has a 30 cm rotating plate. The plate accelerates from rest to a uniform rate of 0.87 rad/s2 for 0.50 sec before reaching its c ...
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Integrated Physical Science: Semester 2 Exam Review

... 19. What is the difference between mass and weight? Explain what the term losing “weight” really means. ...
(a) from to and (b) - hrsbstaff.ednet.ns.ca
(a) from to and (b) - hrsbstaff.ednet.ns.ca

... length of this mirror? 56. A certain lens focuses light from an object 2.75 m away as an image 48.3 cm on the other side of the lens. What type of lens is it and what is its focal length? Is the image real or virtual? 57. A stamp collector uses a converging lens with focal length 24 cm to view a st ...
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Solution key

Physics 11 - hrsbstaff.ednet.ns.ca
Physics 11 - hrsbstaff.ednet.ns.ca

... 7. If the vector sum of all forces acting on an object is precisely zero, the object could still be moving. 8. An elevator moves vertically upward with a constant speed. The vector sum of all the forces acting on the elevator is precisely zero. 9. For any pair of surfaces, the coefficient of static ...
what is physics
what is physics

... FREE-FALL VELOCITY Objects fall to the ground because of Earth’s gravity. When an object falls without friction, it is in freefall. The influence of Earth’s gravity on freely falling objects is represented by the letter g. The value of g is 9.8 meters per second, every second. This means: g = 9.8 m/ ...
Kinematics Equation Lecture
Kinematics Equation Lecture

... The African antelope known as a springbok will occasionally jump straight up into the air, a movement known as a pronk. The speed when leaving the ground can be as high as 7.0 m/s. If a springbok leaves the ground at 7.0 m/s: A. How much time will it take to reach its highest point? B. How long will ...
CCR 1: Classical Relativity
CCR 1: Classical Relativity

... An important question regarding the laws of motion, one that concerned Newton himself and one that you likely studied in first-year physics, is that of the reference frame in which they are valid. It turns out that they work correctly only in what is called an inertial reference frame, a reference f ...
Physics 111 HW6 - University of St. Thomas
Physics 111 HW6 - University of St. Thomas

The Theory of Anti-Relativity, Chapter 2
The Theory of Anti-Relativity, Chapter 2

Misconceptions in Cosmology and how to correct them
Misconceptions in Cosmology and how to correct them

... is only applicable to speeds very low as compared with light. Before the ‘big breed theory’, outlined above, could be quantified mathematically speeds up to that of light had to be included. The only theory available to cover this case was Einstein’s theory of special relativity. Consequently a stud ...
Motion - Riverside Prep PAC Middle School
Motion - Riverside Prep PAC Middle School

... is when its distance from another stationary object is changing ...
CnErCS2
CnErCS2

... have to be 500 km/sec. Thus, it is imaginable that there is a massive body for which the escape velocity equals the speed of light: 300000 km/sec. Such an object is called a ‘black hole’. Presumably light from such an object could not escape to be seen by a distant observer, so that it would not app ...
Winter Final Review with answers
Winter Final Review with answers

Honors/CP Physics
Honors/CP Physics

... (A) The total momentum is Mv and the total kinetic energy is ½Mv2. (B) The total momentum is Mv and the total kinetic energy is less than ½Mv2. (C) The total momentum is less than Mv and the total kinetic energy is ½Mv2. (D) The momentum of each object is ½Mv. ...
Integrated Physical Science: Semester 2 Exam Review
Integrated Physical Science: Semester 2 Exam Review

... 19. What is the difference between mass and weight? Explain what the term losing “weight” really means. ...
Exam 2013 with Answers File - QMplus
Exam 2013 with Answers File - QMplus

1 - CNU.edu
1 - CNU.edu

... elbow joint as the axis of rotation. [1.79] N m (b) If the net torque obtained in part (a) is nonzero, in which direction will the forearm and hand rotate? [clockwise] (c) Would the net torque exerted on the forearm and hand? Why? ...
(Electromagnetic Wave).
(Electromagnetic Wave).

... time that it took light to make a round trip between two mountains in California that were 21.7 miles apart using mirrors. Michelson’s value for the speed of light was calculated as 186,300 miles/second. ...
CPphysics review 2-10
CPphysics review 2-10

... 26. ____ The force of gravity between the earth and a satellite in orbit is 1200N. If the distance between the satellite and the center of the earth is reduced to half its original value, how will the force of gravity on the satellite change? a) it will be reduced by half b) it will double c) it wil ...
Sects. 12.3 through 12.4
Sects. 12.3 through 12.4

... acceleration –0.320 m/s2. First, assume that it moves with constant acceleration for 4.50 s. Find (a) its position and (b) its velocity at the end of this time interval. Next, assume that it moves with simple harmonic motion for 4.50 s and that x = 0 is its equilibrium position. Find (c) its positio ...
2.5 Skydiver homework sheet
2.5 Skydiver homework sheet

... a. Look at the force diagrams above, showing different stages of the parachutist’s fall. What do the downward arrows represent? What do the upward arrows represent? b. Copy the force diagrams above in the correct order to represent the following parts of the fall: - leaving the plane - speeding up - ...
Section 5.1 Work
Section 5.1 Work

... A 7.00-kg bowling ball moves at 3.00 m/s. How fast must a 2.45-g Ping-Pong ball move so that the two balls have the same kinetic energy? ...
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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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