Physics, 17.12.2020 01:00, itcelmairani
Compare these two collisions of a PE student with a wall
Case A: A 75 kg PE student moving at 8 m/s collides with an unpadded wall and
stops
Case B: The same 75 kg PE student moving at 8 m/s collides with a padded wall
and stops
Case A
Case B
Before
After
Before
After
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Which variable is different for these two cases?
Which Case involves the greatest momentum change?
Which Case involves the greatest impulse?
Which Case involves the greatest force?
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--
Answers: 2
Physics, 22.06.2019 06:30, marciamwilliamp31fz6
The energy of a photon was found to be 3.38 × 10–19 j. planck’s constant is 6.63 × 10–34 j • s. which color of light corresponds to this photon?
Answers: 2
Physics, 22.06.2019 12:00, angelamirga332
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
Physics, 22.06.2019 13:00, help1572
Aplayground merry-go-round has a radius of 4.6 m and a moment of inertia of 200 kg-m2 and turns with negligible friction about a vertical axle through its center. a child applies a 26.0 n force tangentially to the edge of the merry-go-round for 15.0 seconds. if the merry-go-round is initially at rest, how much work did the child do on the merry-go-round?
Answers: 1
Compare these two collisions of a PE student with a wall
Case A: A 75 kg PE student moving at 8 m/s...
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