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Physics, 22.06.2019 11:00
1. jay fills a wagon with sand (about 20 kg) and pulls it with a rope 30 m along the beach. he holds the rope 25° above the horizontal. the rope exerts a 20-n tension force on the wagon. how much work does the rope do on the wagon?
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Physics, 22.06.2019 12:00
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.
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Physics, 22.06.2019 16:00
What is friction? how does it affect the motion of an object?
Answers: 1
Which type of make sure looks like it is one substance a. a heterogeneous one b. a suspension c....
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