Ere’s the design information for the roller coaster:
The track has two hills.
The mass of a...
Ere’s the design information for the roller coaster:
The track has two hills.
The mass of a roller coaster car with passengers is 850 kilograms.
The first hill is 50 meters high.
There are 320 meters of track between the top of the first hill and the top of the second hill.
Label the drawing of the roller coaster system with the information above. Label the height of the second hill with a question mark.
Answers: 1
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Asubmarine has a "crush depth" (that is, the depth at which water pressure will crush the submarine) of 250 m. what is the approximate pressure (water plus atmospheric) at this depth? (recall that the density of seawater is 1025 kg/m3, g = 9.81 m/s2, and 1 kg/(ms2) = 1 pa = 9.8692 10-6 atm.) a. 34.8 atm b. 24.8 atm c. 25.8 atm d. 7.8 atm
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Asolid round steel rod 6.25 mm in diameter and 375 mm long is rigidly bonded to the end of solid square brass rod 25 mm on a side and 300 mm long. the geometric axes of the bare are along the same line. an axial tensile force of 5.4 kn is applied at the extreme ends of the assembly. for steel e = 200 gpa and for brass e = 90 gpa. determine the total elongation for the assembly.
Answers: 1
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