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At a time when mining asteroids has become feasible, astronauts have connected a line between their 3130-kg space tug and a 6900-kg asteroid. They pull on the asteroid with a force of 403 N. Initially the tug and the asteroid are at rest, 539 m apart. How much time does it take for the ship and the asteroid to meet?
In the Olympiad of 700 BCE, athletes competing in the standing long jump used handheld weights called halters to lengthen their jumps. The weights were swung up in front just before liftoff and then thrown backward during the flight.
illustrates several of the concepts used in this problem. A single electron orbits a lithium nucleus that contains three protons (+3e). Determine the kinetic energy of the electron
In a popular amusement park ride, the rotating cylinder of radius 3.0 m is set in rotation at an angular speed of 7.0 rad/s. The floor then drops away, leaving the riders suspended against the wall in a vertical position.
A 1-m long pendulum with a mass of 5 kg moves at a velocity of 3 m/s at the bottom of its swing. What is the tension in the string at this point
The drive propeller of a ship starts from rest and accelerates at 2.60 multiply.gif 10-3 rad/s2 for 2.15 multiply.gif 103 s. Find the total angular displacement of the propeller
During 9.93 seconds a motorcyclist changes his velocity from v1,x = -37.3 m/s and v1,y = 14.1 m/s to v2,x =-21.9 m/s and v2,y = 29.3 m/s. Find the components of the motorcycle's average acceleration during this process, aav,x and aav,y.
A car slows down with an acceleration that has a magnitude of 3.5 m/s2, What was the car's initial velocity
A 1.5 {rm kg} block rests on top of a 7.5 {rm kg} block. The cord and pulley have negligible mass, and there is no significant friction anywhere. What force F should be applied to bottom block so the top block accelerates to the right at 2.60 m/s^..
An 11.00 kg crate is placed on a horizontal conveyor belt. The materials are such that static friction = 0.47 and kinetic friction = 0.24.
An Argon ion laser has a gain bandwidth of 2 GHz. Find the number of standing wave cavity modes within the gain bandwidth of the argon ion laser
Pennies today are copper-covered zinc, What are the total positive charge and total negative charge in a solid copper penny that is electrically neutral
A convex lens is made of crown glass with index of refraction n=1.5296 at 480.0 nm and n=1.5203 at 656.3 nm. the radius of curvature of each face is 6.500 cm. Find the focal length of the lens at each wavelength.
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