A 100 kg scaffold is 5.8 m long. It is hanging with two wires, one from each end. A 480 kg box sits 1.4 m from the left end. What is the tension in the left hand side wire?(g = 9.8 m/s2)

Calculate by what factor was the nozzle diameter changed : A firefighter mounts the nozzle of his fire hose a distance 30.5 m away from the edge of a burning building so that it sprays from ground level at a 45° angle above the horizontal. By what factor was the nozzle diameter changed |

Case study - speedy tires : Using the random numbers which will be e-mailed to each group separately, manually simulate the depot operations with one bay and find the average waiting time of the 10 trucks? |

Explain the lewis dot structure be for 2cl molecule : What would the lewis dot structure be for 2Cl molecule + 2Iodied ion, and can you show me the polarity on both for reaction and after formation |

What is the work done by friction on the sled : a 10 kg sled slides down a snowy hill. At position A it is moving at 1.00 m/s when it reaches position B it is moving at 3 m/s. What is the work done by friction on the sled |

What is the tension in the left hand side wire : A 100 kg scaffold is 5.8 m long. It is hanging with two wires, one from each end. A 480 kg box sits 1.4 m from the left end. What is the tension in the left hand side wire?(g = 9.8 m/s2) |

Explain the termination step is also fast with rate : For an addition polymerization, the initiation is the slow step (1st order in initiator,R'2------->2R'.). The propagation step is fast with the rate=k1[R.][monomer]. The termination step is also fast with rate=k2[R.]^2. |

What is the arrival rate for each customer per hour : What is the arrival rate for each customer per hour and which queuing model will you use? What is arrival rate for each customer per hour? |

What is the potential difference : A cylindrical resistor of radius 4.2 mm and length 2.4 cm is made of material that has a resistivity of 3.50×10-5 ? m. What is the current density when the energy dissipation rate in the resistor is 1.0 W? What is the potential difference? |

Pushing force-frictional force and the gravitational force : A person pushes a 16.2-kg shopping cart at a constant velocity for a distance of 27.5 m on a flat horizontal surface. She pushes in a direction 32.3 ° below the horizontal. A 35.3-N frictional force opposes the motion of the cart. (a) What is the mag.. |

## Find how many missions would be possible in one yearEvery day our Earth receives 1.55×1022 J energy from the Sun. If we were able to use 1.05 percent of this energy to accelerate spaceships, then how many missions would be possible in one year |

## Determine the vertical componentDetermine the vertical component. when would a microphone at the other end first detect a disturbance. |

## What is the pressure of the water on fourth floorA pulley 18 in diameter is free to rotate about the horizontal axle. A 220 mass and a 420 mass are tied to either end of a massless string, and string is hung over the pulley. |

## Find the speed at which protons exit the cyclotronA cyclotron (see figure below) designed to accelerate protons has an outer radius of 0.333 m. Find the speed at which protons exit the cyclotron |

## What is the magnitude of the total momentum of the systemAt a certain location, the horizontal component of the earth's magnetic field is 4.90 10-5 T, due north. A proton moves eastward with just the right speed, so magnetic force on it balances its weight. Find the speed of the proton. |

## How far away does the back of your head appear to beThe place you get your hair cut has two nearly parallel mirrors 7.0 apart. As you sit in the chair, your head is 1.5 from the nearer mirror. How far away does the back of your head appear to be |

## What is the power of the batteryPulling down on a rope, you lift a 4.49 kg bucket of water from a well with an acceleration of 1.50 m/s2. What is the tension in the rope. |

## Determine the height of the towerA rock is thrown vertically upward from ground level at time t = 0. At t = 1.9 s it passes the top of a tall tower, What is the height of the tower |

## Estimate the amount of potential energy stored in the springA spring with a constant of 32 N/m is placed on a horizontal smooth surface and a mass of 2.3 kg is pushed against it. What is the amount of potential energy stored in the spring when it is compressed |

## What force did the wall apply to the bulleta 15 g rubber bullet hits a wall with a speed of 150 m/s. What force did the wall apply to the bullet |

## Find the initial speed of electronsTwo electrons are fixed 2.1 cm apart. Another electron is shot from infinity and comes to rest midway between the two. What was its initial speed |

## What is the altitude of the satelliteA converging lens with a diameter of 30.0 cm forms an image of a satellite passing overhead. what is the altitude of the satellite |

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