Abstract: The previous lab explored the effect of gravity on free fall. It was determined that acceleration is always constant under free fall. However‚ in this lab‚ acceleration was observed under different forces‚ other than just gravity. Therefore‚ depending on how strong the forces being exerted were‚ acceleration differed. It wasn’t constant anymore. Using a glider on a air track and a pulley‚ different masses were attached at the end of the string and the glider was allowed to move on the
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questions: force and motion I problem 1 The figure below is an overhead view of a 12 kg tire that is to be pulled by three ropes. One force (Fl‚ with magnitude 50 N) is indicated. Orient the other two forces F2 and F3 so that the magnitude of the resulting acceleration of the tire is least‚ and find that magnitude if (a) F2 = 30N‚ F3= 20 N; (b) F2= 30 N‚ F3 = 10 N; and (c) F2 = F3 = 30 N. problem 2 A weight-conscious penguin with a mass of 15.0 kg rests on a bathroom scale (see figure below).
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The electric field depicts the surrounding force of an electrically charged particle exerted on other electrically charged objects. The concept of an electric field was introduced by Michael Faraday. The electric field is a vector field with SI units of newtons per coulomb (N C−1) or‚ equivalently‚ volts per metre (V m−1). The SI base units of the electric field are kg⋅m⋅s−3⋅A−1. The strength or magnitude of the field at a given point is defined as the force that would be exerted on a positive test
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1 1 A wooden block of mass 0.60 kg is on a rough horizontal surface. A force of 12 N is applied to the block and it accelerates at 4.0 m s –2. 4.0 m s–2 wooden block 12 N What is the magnitude of the frictional force acting on the block? A B 9.6 N C 14 N D 2 2.4 N 16 N A submarine descends vertically at constant velocity. The three forces acting on the submarine are viscous drag‚ upthrust and weight. Which relationship between their magnitudes is correct
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Force Field Analysis: Driving Forces Field Analysis: Driving Forces KURT LEWIN’S CHANGE THEORY By: Mandeep Chahal & Arvinder Khaira Mandeep Chahal Arvinder Khaira DRIVING FORCE Driving Forces are forces that push in a direction that causes change to occur. They cause a shift in the equilibrium towards change change. i.e. A married couple who has to get ready for a party‚ the husband is on the couch watching the football game. The wife encourages her Th husband to get ready because
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the key characteristic of the U.S. Air Force became its airlift capability. Saying that‚ the Air Force became essential element in joint military operation supporting one of the joint functions such as sustainment. Sustainment gives necessary ability to joint forces to maintain and prolong operations until mission accomplished. Moreover‚ the ability of the Air Force to provide by air material and personnel in the theater of military actions gives to Joint Force Command (JFC) flexibility and the ability
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Appendix - Porter five forces model: Competitive situation of printing industry Threat of new entrants |Factors (affecting the threat of new entrants) |Analysis |Threat Rating of New | | | |Entrants | |Economies of scale: |The printing product is usually required large
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= 300g 9.8 3. Explain the effect of mass on Hooke’s Law. Hooke’s Law states that the restoring force of a spring is directly proportional to a small displacement. Applying a mass to the end of the spring stretches it‚ changing the length from its original equilibrium position of rest‚ to a new (lower) equilibrium position. At this position‚ the vertical restoring force of the spring balances the weight and the downward pull of gravity is balanced by the upward pull of the spring
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A ball is thrown upward at time t=0 from the ground with an initial velocity of 18 m/s (~ 40 mph). Assume that g = 10 m/s2. Time to reach apex 18/10 = 1.8 Time x 2 = 3.6 Great height reached by ball – (Velocity)(time)+(-5)(time^2) 18x1.8+(-5)(1.8^2)=16.2 A model rocket accelerates upward from the ground with a constant acceleration‚ reaching a height of 63 m in 8 s. * Speed at height 63 - 2x63/8 = answer What is the acceleration= answer/8 * If you were to drop a rock from a tall building
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the forces exerted by each ladder on the board. FR = 593N‚ FL = 299N 5. The diagram shows a horizontal beam of negligible mass. The wall exerts a 42.0 N horizontal force on the lever. Find the weight of the load. 16.1 N 6. A uniform 3.0 kg shelf of width 0.50 m is supported by a bracket‚ as shown in the diagram below. What force does the bracket exert on the shelf? 48 N 7. The diagram shows the forces acting
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