1. A book is at rest on a tabletop. A free-body diagram for this situation looks like this: Return to Questions Return to Info on Free-body diagrams Return to on-line Force Description List 2. A girl is suspended motionless from the ceiling by two ropes. A free-body diagram for this situation looks like this: Return to Questions Return to Info on Free-body diagrams Return to on-line Force Description List 3. An egg is free-falling from a nest in a tree. Neglect air resistance. A
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was made into 3D movie this year------the 100 anniversary of Titanic being sunk. The movie Titanic is close to the real accident happened on April 14th‚ 1912 and there’s a lot of physics involved in the movie. We have to admit that James Cameron really spent plenty of time on the causation of the accident. ① physics side note: Pressure (√) At the beginning of the movie‚ there is a group of people who want to find the invaluable “Heart of the Ocean”. They used submarine to get 3821 meters under
Free Thermodynamics Energy Fundamental physics concepts
|Chemistry Review 1 |TEACHER ANSWER KEY | | |June 06‚ 2011 | | | |’see explanation below’
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Physics in Roller Coasters There is a lot of Physics in a roller coaster. It contains a lot of potential and kinetic energy‚ and also centripetal force. All of these factors will define how the roller coaster really works. As we all know‚ or some of us know‚ roller coasters doesn’t use engine to operate the ride. It depends on converting potential energy into kinetic energy. Cars will need a certain amount of pull or push to reach a certain peek of the track. Upon reaching the peak‚ the energy
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Gabrino‚ Juan Miguel M. ENGPHY1‚ 1. As I observed while riding both the Dodgem and Bump n’ Splash the direction of the force when my friends bumped me was same with the direction where the car of my friends are headed. According to Newton’s second law‚ an object that experiences an unbalance force will accelerate in the direction of the unbalanced force. 2. While riding the wheel of fate while it is continuously moving I felt the greatest acceleration at the bottom of the Ferris wheel
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| Two small spheres‚ each with mass m = 3.0 g and charge q‚ are suspended from a point by threads of length L = 0.22 m. What is the charge on each sphere if the threads make an angle = 15º with the vertical? | | A) 0.79 C B) 2.9 C C) 75 mC D) 6.3 C E) 0.11 C | | | | Three charges‚ each of Q = 3.2 10–19 C‚ are arranged at three of the corners of a 20-nm square as shown. The magnitude of the electric field at D‚ the fourth corner of the square‚ is approximately
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SAMPLE PROBLEMS: 111-SET #1 VECTOR ADDITION‚ SUBTRACTION 01-1 1). A man is able to row a boat at 3 mph in still water. If he rows his boat pointed straight across a river with a current of 4 mph‚ what is his net velocity? If the river is 0.5 miles wide‚ at what point will he land on the other side? Solution: The first step in problem solving is to identify the problem type. In this problem we are asked for a ‘net velocity.’ Since velocities behave as vectors‚ then we have a vector addition
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The lndian High School Revision -Term 1 Grade:9 Answer as many as Possible: ffi 4) State universal law of gravitation Express it mathematically. Differentiate between G’ and 91 in tabtrlat fotm’ 3) (a) What is acceleration ? Write ib unit. velocity’ bi I)t"* velocity-time graPh‚ when an obiect has (i) unifortdy accelerated (ii) uniformly retarded velocity. fror" that if u Uoayi" thrown ve*ically upwatd‚ the time of ascent is equal to the time ffi of descent. Th;;r*h .ttracts the
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Experiment 5: Relative Density Patrick Erlo Reyes‚ Joseph Winfred Sajul‚ La Reyna Roshele Salenga‚ Luisito Jeremiah Samonte‚ Christine Bernadette Sanchez Department of Biology College of Science‚ University of Santo Tomas España‚ Manila‚ Philippines Abstract This experiment is concerned with the densities of objects. The first activity is determining the density of a cylinder through displacement method and by weighing. The second activity is finding the density of a bone and determining it whether
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The graph below is a plot of displacement versus time of a mass oscillating on a spring. 73. At which point on the graph is the acceleration of the mass zero? a. A c. C b. B d. D 74. At which point on the graph is the velocity of the mass zero? a. A c. C b. B
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