How best to describe the traction force in a rail vehicle? A) the force of pulling other railway cars B) holding force to rails C) wagon braking force D) braking force in all vehicles E) turning force on the wheel
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10 - How best to describe the traction force in a rail vehicle?
A) the force of pulling other railway cars
B) holding force to rails
C) wagon braking force
D) braking force in all vehicles
E) turning force on the wheel
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Solved in 2 steps
- Question 25 Make a summary of the importance of fluid dynamics in the railway industry.What are the modes of Transportation? -Highway and Railway EngineeringA basketball is thrown 35 degrees from the vertical. The distance of the player is 14 ft from the ring. Upon the release of the ball, it has a distance of 7 ft measured from the ground and 1 ft away from the player. Compute the velocity at release if the height of the ring is 10 ft. Please show complete diagrams and solution.
- A subway train made of two cars is shown. It travels at a speed of 50 kph. When the brakes are applied, a braking force of 10000N is applied to each car. Determine the force in the coupling between the cars.A train weighing 1000 tons is pulled up a 1% grade at 12 mi/hr. If the train resistance is constant at 14 lb/ton, and the power exerted by the locomotive remains constant, determine the horsepower the locomotive developed. the answer must be 3 decimal places.1. There are four sizes based on the speed of the facility for regulatory signs, choose the wrong statement. a. D for expressways b. B for rural roads with speed limits between 60 kph and 70 kph c. A for urban low-speed road d. C for high-speed urban highways 2. A form of hydropower that converts the energy of tides into electricity. a. Geothermal Energy b. Tidal Energy c. Solar Energy d. Wind Energy 3. A mixture of hydrocarbons like alkanes and cycloalkanes. a. Petroleum and Natural Gas b. Coal c. Biomass d. Fuel 4. This energy generally involves low running costs since it saves 80% on fossil fuels. a. Geothermal Energy b. Tidal Energy c. Solar Energy d. Wind Energy 5. Destruction of the Earth’s surface caused by human activities and the misuse of natural resources. a. Land pollution b. Non-renewable resource c. Renewable resource d. Natural resources
- 25 - Which rail vehicles do not use axle brakes?A) LocomotivesB) Subway vehicleC) EMUD) Passenger wagonsE) DMUA train weighing 1000 tons is pulled up a 1% grade at 12 mi/hr. If the train resistance is constant at 14 lb/ton, and the power exerted by the locomotive remains constant, determine the speed of the train (mi/hr) on a level ground. the answer must be 3 decimal places.For design, the daily car, pickup truck, and light van traffic is 20,000; and the daily truck traffic consists of 200 passes of single-unit trucks with single and tandem axles, and 410 passes of tractor semi-trailer trucks with single, tandem, and triple axles. The axle weights are :cars, pickups, light vans = two 2000-lb single axles;single-unit trucks = 10,000-lb steering, single axle= 22,000-lb drive, tandem axle and: tractor semi-trailer trucks = 12,000-lb steering, single axle,= 18,000-lb drive, tandem axle,= 50,000-lb trailer, triple axle: QUESTION: Using D=10 inches, what is the 18-kip–equivalent single-axle load (18-kip ESAL) for cars, pickups, and light vans?
- A block having a mass of 50 kg is subjected to a horizontal force applied 0.5 m. above the horizontal surface causing it to have an acceleration of 1m/s2. If the coefficient of friction between the block and the horizontal surface is 0.40. Find the horizontal force. Find the distance traveled after 10 sec. if it has an initial velocity of 5 m/s. c. Find the velocity after 5 sec.A 400 N block slides on a horizontal plane by applying a horizontal force of 200 N and reaches a velocity of 10 m/s in a distance of 30 m from rest. Which of the following gives the coefficient of friction between the floor and the block? A. 0.24 B. 0.27 C. 0.33 D. 0.39 E. none of the above Which of the following gives the total distance that the block will move until it stops if the 200 N force is removed when it reaches 30 m from west. A. 45.43 m B. 47.88 m C. 49.17 m D. 51.64 m E. none of the above Which of the following gives time the block moves a distance of 30 m from rest. A. 4s B. 5s C. 6s D. 7s E. none of the aboveA 60-g steel sphere attached to a 200-mm cord can swing about point O in a vertical plane. It is subjected to its own weight and to a force F exerted by a small magnet embedded in the ground.The magnitude of that force expressed in newtons is F= 3000/r2 , where r is the distance from the magnet to the sphere expressed in millimeters. Knowing that the sphere is released from rest at A , determine its speed as it passes through point B.