A phone cord is 6.16 m long. The cord has
a mass of 0.261 kg. A transverse wave pulse is produ...
Physics, 02.03.2020 07:50, ammarsico19
A phone cord is 6.16 m long. The cord has
a mass of 0.261 kg. A transverse wave pulse is produced by plucking one end of the taut cord. The pulse makes four trips down and back along the cord in 0.921 s.
What is the tension in the cord?
Answer in units of N.
Answers: 2
Physics, 21.06.2019 18:10, HOTaco554
After the near spacecraft passed mathilde, on several occasions rocket propellant was expelled to adjust the spacecraft's momentum in order to follow a path that would approach the asteroid eros, the final destination for the mission. after getting close to eros, further small adjustments made the momentum just right to give a circular orbit of radius 45 km (45 Ă— 10^3 m) around the asteroid. so much propellant had been used that the final mass of the spacecraft while in circular orbit around eros was only 545 kg. the spacecraft took 1.04 days to make one complete circular orbit around eros. calculate what the mass of eros must be.
Answers: 1
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Aspring is used to stop a 50-kg package which is moving down a 20Âş incline. the spring has a constant k = 30 kn/m and is held by cables so that it is initially compressed 50 mm. knowing that the velocity of the package is 2 m/s when it is 8 m from the spring and neglecting friction, determine the maximum additional deformation of the spring in bringing the package to rest.
Answers: 1
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