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2. Two locomotives are at the opposite ends of a 10.4 km long track. They are...
Runner Rendezvous. Two runners start simultaneously at opposite ends of a straight 200 m track and...
Runner Rendezvous. Two runners start simultaneously at opposite ends of a straight 200 m track and run towards each other. Runner A runs at a steady 9.00 m/s, while Runner B runs at a constant 5.00 m/s. a) Draw a diagram of this situation. Include a coordinate system in your diagram, and label the initial positions and velocities of both runners. Also estimate where the runners would meet and label it as x. b) Write equations for the position of...
Two parallel plates having charges of equal magnitude but opposite sign are separated by 30.0 cm....
Two parallel plates having charges of equal magnitude but opposite sign are separated by 30.0 cm. Each plate has a surface charge density of 48.0 nC/m2 A proton is released from rest at the positive plate. (a) Determine the magnitude of the electric field between the plates from the charge density. kN/C (b) Determine the potential difference between the plates. (c) Determine the kinetic energy of the proton when it reaches the negative plate. (d) Determine the speed of the...
Two identical 0.800-kg masses are pressed against opposite ends of a light spring of force constant...
1. Two identical 0.800-kg masses are pressed against opposite ends of a light spring of force constant 1.75 N/cm, compressing the spring by 11.0 cm from its normal length.Part AFind the speed of each mass when it has moved free of the spring on a frictionless, horizontal table.Express your answer with the appropriate units.2. A 15.0 kg fish swimming at 1.40 m/s suddenly gobbles up a 4.50 kg fish that is initially stationary. Neglect any drag effects of the water.Part...
6. An airplane has a speed of 120 km/h degrees east of north when a wind start 2: Long Answer (15...
6. An airplane has a speed of 120 km/h degrees east of north when a wind start 2: Long Answer (15 points) Two trains, both traveling at 30 m/s, are headed toward each other on the same track. When they are 4.0 km apart they see each other and slam on the brakes a) If their decelerations are constant and equal, what must be the magnitudes of these accelerations if the trains are to barely avoid collision? b) How many...
Question 2 (a) Using the component method, in adding the two vectors: 14 N in the...
Question 2 (a) Using the component method, in adding the two vectors: 14 N in the x direction and 13 N at 45° elevation, (b) : (i) Calculate the momentum of a 8000 kg locomotive travelling at 12 m/s. (ii) This locomotive collides with a stationary carriage of mass 2500 kg and they shunt (stick together). What would be the velocity of the combination, assuming there is negligible friction. (iii) Would kinetic energy be conserved in this collision? Show...
2. A railroad boxcar rolls on a track at 3.10 m/s toward two identical coupled boxcars,...
2. A railroad boxcar rolls on a track at 3.10 m/s toward two identical coupled boxcars, which are rolling in the same direction as the first, but a speed of 1.60 m/s. The first reaches the second two and all couples together. The mass of each is 4.65 x 104kg. (a) Present the physical principle in mathematical form and use it to determine the speed of the three coupled cars after the first couples with the other two. (b) Determine...
Two children (m = 33.0 kg each) stand opposite each other on the edge of a...
Two children (m = 33.0 kg each) stand opposite each other on the edge of a merry-go-round. The merry-go-round, which has a mass of 1.78 ✕ 102 kg and a radius of 1.4 m, is spinning at a constant rate of 0.42 rev/s. Treat the two children and the merry-go-round as a system. (a) Calculate the angular momentum of the system, treating each child as a particle. (Give the magnitude.) (b) Calculate the total kinetic energy of the system. (c)...
ms H: 10 42 11 Two equal and opposite forces of 3 N have a netforce...
ms H: 10 42 11 Two equal and opposite forces of 3 N have a netforce of A9N B6N c3N DON Which of the following is NOT a constant for an object in uniform circular motion! A distance with time speed e velocity D acceleration magnitude Work is A energy times distance, B force times distance. c force times time. D momentum times distance. You push against Plymouth Rock with a force of 100 newtons for 20.0 seconds. If the...
Show all work 2) Runner Rendezvous. Two runners start simultaneously at opposite ends of a straight...
Show all work
2) Runner Rendezvous. Two runners start simultaneously at opposite ends of a straight 200 m track and run towards each other. Runner A runs at a steady 9.00 m/s, while Runner B runs at a constant 5.00 m/s. a) Draw a diagram of this situation. Include a coordinate system in your diagram, and label the initial positions and velocities of both runners. Also estimate where the runners would meet and label it as x. b) Write equations...
Show all work 2) Runner Rendezvous. Two runners start simultaneously at opposite ends of a straight...
Show all work
2) Runner Rendezvous. Two runners start simultaneously at opposite ends of a straight 200 m track and run towards each other. Runner A runs at a steady 9.00 m/s, while Runner B runs at a constant 5.00 m/s. a) Draw a diagram of this situation. Include a coordinate system in your diagram, and label the initial positions and velocities of both runners. Also estimate where the runners would meet and label it as x. Write equations for...
Two parallel plates having charges of equal magnitude but opposite sign are separated by 30.0 cm. Each plate has a surface charge density of 48.0 nC/m2 A proton is released from rest at the positive plate. (a) Determine the magnitude of the electric field between the plates from the charge density. kN/C (b) Determine the potential difference between the plates. (c) Determine the kinetic energy of the proton when it reaches the negative plate. (d) Determine the speed of the...
6. An airplane has a speed of 120 km/h degrees east of north when a wind start 2: Long Answer (15 points) Two trains, both traveling at 30 m/s, are headed toward each other on the same track. When they are 4.0 km apart they see each other and slam on the brakes a) If their decelerations are constant and equal, what must be the magnitudes of these accelerations if the trains are to barely avoid collision? b) How many...
2. A railroad boxcar rolls on a track at 3.10 m/s toward two identical coupled boxcars, which are rolling in the same direction as the first, but a speed of 1.60 m/s. The first reaches the second two and all couples together. The mass of each is 4.65 x 104kg. (a) Present the physical principle in mathematical form and use it to determine the speed of the three coupled cars after the first couples with the other two. (b) Determine...
ms H: 10 42 11 Two equal and opposite forces of 3 N have a netforce of A9N B6N c3N DON Which of the following is NOT a constant for an object in uniform circular motion! A distance with time speed e velocity D acceleration magnitude Work is A energy times distance, B force times distance. c force times time. D momentum times distance. You push against Plymouth Rock with a force of 100 newtons for 20.0 seconds. If the...
Show all work
2) Runner Rendezvous. Two runners start simultaneously at opposite ends of a straight 200 m track and run towards each other. Runner A runs at a steady 9.00 m/s, while Runner B runs at a constant 5.00 m/s. a) Draw a diagram of this situation. Include a coordinate system in your diagram, and label the initial positions and velocities of both runners. Also estimate where the runners would meet and label it as x. b) Write equations...
Show all work
2) Runner Rendezvous. Two runners start simultaneously at opposite ends of a straight 200 m track and run towards each other. Runner A runs at a steady 9.00 m/s, while Runner B runs at a constant 5.00 m/s. a) Draw a diagram of this situation. Include a coordinate system in your diagram, and label the initial positions and velocities of both runners. Also estimate where the runners would meet and label it as x. Write equations for...
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