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The bridge over an irrigation channel is shown in the figure below. Th ebridge can be considered as a uniform concrete beam of length 30m and mass 20 tonnes. A heavily loaded small truck of mass 6 tonnes is pictured crossing the bridge.
https://d2vlcm61l7u1fs.cloudfront.net/media%2F395%2F39516c3a-d0c0-423b-8736-b160fe21fb6e%2FphpQYb6Sj.png
Calculate the magnitude of each of the normal contact forces N1 and N1 at each end of the bridge when the centre of mass of the truck is 10 m from one end.
John's mass is 86 kg, and Barbara's is 55 kg. He is standing on the x axis at xJ = +9.0 m, while she is standing on the x axis at xB = +2.0 m. They switch positions. How far and in which direction does their center of mass move as a result of the ..
A raft of mass M with a man of mass m aboard stays motionless on the surface of a lake. Obtain the displacement of the raft relative to shore
To stretch a certain spring by 3.00 from its equilibrium position requires 9.50 of work. What was the maximum force required to stretch it
An electron in an excited state of hydrogen makes a transition from n = 7 level to the n = 2 level. Calculate the wavelength of the photon involved in the transition
A radio station broadcasts at a frequency of 600,000 Hz. Know that radio waves have a speed of 3.00 x 10^8m/s, what is wavelength of these waves.
The partnership distributed $5,000 cash to Marilyn. Her share of partnership liabilities on the last day of the partnership year was $4,000. Compute Marilyn’s adjusted basis (outside basis) for her partnership interest at year-end.
Elm Street has a pronounced dip at the bottom of a steep hill before going back uphill on the other side. Sitting on the scale while the car is parked gives a reading of 588 N. Analyze your data, using a graph, to determine the dip's radius of curv..
A nozzle of inner radius 1.05 mm is connected to a hose of inner radius 8.03 mm. The nozzle shoots out water moving at 25.5 m/s. At what speed is the water in the hose moving
When one mole of C6H6 is burned, 3.27 MJ of heat is produced. When the heat from burning 7.77 g of C6H6 is added to 5.69 kg of water at 21.0°C, what is the final temperature of the water?
Two forces are applied to a car in an effort to move it, as shown in the following figure, where F1 = 410 N and F2 = 376 N. (Assume up and to the right as positive directions.), What is the resultant of these two forces
A step-down transformer (turns ratio = 1:8) is used with an electric train to reduce the voltage from the wall receptacle to a value needed to operate the train, What is the current in the primary coil?
Two cars of equal mass collide at right angles to each other in an intersection. Which car had the greater velocity before the collision
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