Physics, 12.07.2019 23:30 hbstanley3
An acrobatic buccaneer swings from one rope to another in the rigging of a pirate ship. as she grasps the rope, her mass is m -68.2 kg; knots on the rope make the rope's effective mass mp -1.80 kg. from the height she grabs the rope, she swings up a further distance of 1.5 m. assuming that her collision with the rope is perfectly inelastic, answer the following questions: a) does her collision with the rope conserve energy? [y/n? ) (5 points) b) does the buccaneer's collision with the rope conserve momentum? (y/n? ) (5 points) c) neglecting any energy losses due to friction, air drag, etc., determine the velocity of the buccaneer-and-rope combined system right after she grabs the rope in m/s. (15 points) d) can you calculate the buccaneer's initial speed before she grabbed the rope from the information given?
Answers: 2
Physics, 22.06.2019 10:30
Aparticle moves in the xy plane with constant acceleration. at time zero, the particle is at x = 6 m, y = 8.5 m, and has velocity ~vo = (9 m/s) ˆı + (−2.5 m/s) ˆ . the acceleration is given by ~a = (4.5 m/s 2 ) ˆı + (3 m/s 2 ) ˆ . what is the x component of velocity after 3.5 s? answer in units of m/s.
Answers: 1
Physics, 22.06.2019 10:40
As you are trying to move a heavy box of mass m, you realize that it is too heavy for you to lift by yourself. there is no one around to , so you attach an ideal pulley to the box and a massless rope to the ceiling, which you wrap around the pulley. you pull up on the rope to lift the box. use g for the magnitude of the acceleration due to gravity and neglect friction forces. once you have pulled hard enough to start the box moving upward, what is the magnitude f of the upward force you must apply to the rope to start raising the box with constant velocity? express the magnitude of the force in terms of m, the mass of the box.
Answers: 1
Physics, 22.06.2019 12:00
Apatient has a history of poor nutrition. he has skin rashes, bleeding gums, and a cut that hasn’t healed in a long time. what vitamin deficiency most likely caused this symptom?
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Physics, 22.06.2019 13:00
Acertain radio station broadcasts radio waves that have a wavelength of 298cm what is its broadcast frequency?
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An acrobatic buccaneer swings from one rope to another in the rigging of a pirate ship. as she grasp...
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