A 2.0-kg object is attached to a spring (k=55.6 N/m) that hangs vertically from the ceiling. The object is displaced 0.045m vertically. When the object is released, the system undergoes simple harmonic motion. What is the magnitude of the maximum acceleration of the object?

## Determine the mans upward accelerationTo hoist himself into a tree, a 72.0-kg man ties one end of a nylon rope around his waist and throws the other end over a branch of the tree. determine the man's upward acceleration |

## Compute the speed of this waveA sinusoidal wave traveling on a string has a period of 0.21s, a wavelength of 32cm, and an amplitude of 5.0cm. compute the speed of this wave |

## Calculate the tensile strain in the wireA wire is 3.500 m long. After applying a force to one end of the wire, it is now 3.504 m long. Calculate the tensile strain in the wire |

## What is the electric flux through the cubeA particle of charge +1.5 nC is placed at a corner of a Gaussian cube with sides 12.0 cm. What is the electric flux through the cube |

## Compute the internal resistance of the electromagnetYou have a small electromagnet that consumes 320 W from a residential circuit delivering 115 V at 50.0 Hz. What is the internal resistance of the electromagnet |

## What is the work done for each cycleWith each cycle, a 2550-W engine extracts 2180 J from a thermal reservoir at 87.7°C and expels 1570 J into a thermal reservoir at 21.7°C. What is the work done for each cycle |

## Find the horizontal component of the books velocityA river flows due south with a speed of 2.00m/s{\rm m}/{\rm s} . A man steers a motorboat across the river, Find the horizontal component of the book's velocity |

## Compute the ratio of these two forcescompare the electric force holding the electron in orbit (r=0.53*10^-10m) around the proton nucleus of the hydrogen atom, What is the ratio of these two forces |

## Calculate the magnitude of the electric field at a pointA 75-m long train begins unknown uniform acceleration from rest.The front of the train has a speed of 23 m/s when it passes arailway worker who is standing 180m from where the front of the train started. What will the speed of the last car be as i.. |

## What fraction of the total kinetic energy is rotationalA round object has a rotational inertia of I = ?MR2, where ? is a constant, M is its mass and R is its radius. What fraction of the total kinetic energy is rotational |

## Calculate the final charge on each capacitorConsider the circuit shown in the figure below, where C1 = 2.00 µF, C2 = 9.00 µF, and ?V = 18.0 V. Calculate the final charge on each capacitor |

## Compute the specific heat of the metalA metal ball of mass 0.22 kg with initial temperature of 95ºC is dropped into a container of 0.50 kg of water at 20ºC. what is the specific heat of the metal |

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