A 53.5 kg person takes a nap in a (lightweight) backyard hammock. Both ropes supporting the hammock are at an angle of 12.9° above the horizontal. Find the tension in the ropes.

Find expressions for the cycloidal path of resulting motion : An electron moves in a force field due to a uniform electric fied E=E(i+j) and a uniform magnetic field B=Bk. Take the initial position of the electron at the origin with initial speed Vo=Vox i in the x direction |

Magnus has reached the finals of a strength competition : Magnus has reached the finals of a strength competition. In the first round, he has to pull a city bus as far as he can. One end of a rope is attached to the bus, while the other is tied around Magnus\'s 48 inch waist. If a force gauge placed half.. |

What is the orbital period of the planet Tplanet : A planet of mass m = 7.85 × 1024 kg is orbiting in a circular path a star of mass M = 4.35 × 1029 kg. The radius of the orbit is R = 8.15 × 107 km. What is the orbital period (in earth days) of the planet Tplanet? |

Maximum energy that can be stored in the capacitor : A certain parallel-plate capacitor is filled with a dielectric for which ? = 6.5. The area of each plate is 0.038 m2, and the plates are separated by 2.0 mm. The capacitor will fail (short out and burn up) if the electric field between the plates exc.. |

Find the tension in the ropes : A 53.5 kg person takes a nap in a (lightweight) backyard hammock. Both ropes supporting the hammock are at an angle of 12.9° above the horizontal. Find the tension in the ropes. |

Orbital period of the planet tplanet : A planet of mass m = 7.85 × 1024 kg is orbiting in a circular path a star of mass M = 4.35 × 1029 kg. The radius of the orbit is R = 8.15 × 107 km. What is the orbital period (in earth days) of the planet Tplanet? |

A cat dozes on a stationary merry-go-round : A cat dozes on a stationary merry-go-round, at a radius of5.5m from the center of the ride. Then the operator turns on the ride and brings it up to its proper turning rate of one complete rotation every6.0s. |

What is the initial momentum of the first train car : A train car with mass m1 = 594.0 kg is moving to the right with a speed of v1 = 7.4 m/s and collides with a second train car. The two cars latch together during the collision and then move off to the right at vf = 4.7 m/s. What is the initial mome.. |

Mechanical advantage the pulley system : Mechanical Advantage The pulley system shown in the figure is used to lift a 52- crate. Note that one chain connects the upper pulley to the ceiling and a second chain connects the lower pulley to the crate. Assume the masses of the chains, pulley.. |

## How far did he ball travel horizontally in metersA batter hits a baseball m = 0.48 kg from rest with a force of F = 86 N, The ball is in contact with the bat for t = 0.26 s. How far did he ball travel horizontally in meters |

## Will the electron move toward the lower potential regionAn electron is released in a region where there is a varying electric potential. Will the electron move toward the lower potential region or the higher potential region |

## Determine the magnitude of the friction acting on the boxThe 6.5 kg box has acceleration to the left of 3.50 m/s^2. There is an applied force of 50 N acting on the box. Determine the magnitude of the friction acting on the box |

## What is the frequency of vibration of the stringA vibrating guitar string emits a tone simultaneously with one from a 500-Hz tuning fork. If a beat frequency of 5 Hz results, what is the frequency of vibration of the string |

## What type of objects emit at your selected regionSelect one of the following regions of the electromagnetic spectrum: radio wave, infrared, ultraviolet, X-ray, Gamma rays. What type of objects emit at your selected region |

## How far beneath the cliff top is the pebbleIn preparation for this problem, review Conceptual Example 7. After 0.640 s, how far beneath the cliff top is the pebble |

## Q1 the specific heat of lead is 128 jkg0c 300 grams of leadq1. the specific heat of lead is 128 jkg0c. 300 grams of lead shot at 1000c is mixed with 200 grams of water at 00c in |

## Determine the force of air resistance on the bucketA fire helicopter carries a 649 kg bucket of water at the end of a 18.7 m long cable. Flying back from a fire at a constant speed of 44.2 m/s, Determine the force of air resistance on the bucket |

## Determine the velocity of the sports carIn a parking lot, an SUV of mass 2000 kg driving at 5 m/s collides head on with a sports car of mass 1000 kg driving in the opposite direction. Determine the velocity of the sports car before the collision |

## Find the average power output by the manA man pushes a 50N box across a level floor at a constant speed of 2.0 m/s for 10 s. Find the average power output by the man |

## Find the direction of the electric field at center of squarefour charges, given in multiples of 1.00×10-5 C form the corners of a square and four more charges lie at the midpoints of the sides of the square. find the direction of the electric field at the center of the square |

## How much energy is dissipated by the resistorA 0.25?F capacitor is charged to 80V . It is then connected in series with a 25?resistor and a 110? resistor and allowed to discharge completely |

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