In the dangerous "sport" of bungee-jumping, a daring student jumps from a hot-air balloon with a specially designed elastic cord attached to his waist, as shown in the figure below. The unstretched length of the cord is 26.0 m, the student weighs 675 N, and the balloon is 36.0 m above the surface of a river below. Calculate the required force constant of the cord if the student is to stop safely 4.00 m above the river.

Explain the treatment of 1-methylcyclohex-1-ene : Draw all compounds that would be expected from the treatment of 1-methylcyclohex-1-ene with the listed reagents and conditions. Write "no reaction" if appropriate and explain why |

Evaluate the neutralizing capacity for pure caco3 : Using m=Mn, calculate the neutralizing capacity for pure CaCO3 neutralizing HCl (use the stoichiometry in the below equation for determining the ratio of moles). |

Define what mass of the precipitate forms : Calculate the following when 0.250 L of 0.259 M AgNO3 solution is mixed with 0.350 L of 0.300 M Na2CO3 solution. Ksp for Ag2CO3 is 8.46E-12. What mass of the precipitate forms. What is the concentration of Ag+ remaining in solution |

Explain the sulfur-oxygen bond lengths in sulfite : Do you expect the sulfur-oxygen bond lengths in sulfite and sulfate ions to be about the same. Why. |

Calculate the required force constant of the cord : In the dangerous "sport" of bungee-jumping, a daring student jumps from a hot-air balloon with a specially designed elastic cord attached to his waist, Calculate the required force constant of the cord |

Calculate the unit contribution margin for suff : Calculate the unit contribution margin for SUFF, how many units must be sold in the coming period in order to break even on SUFF. |

Calculate how much heat is discharged : A heat engine with an efficiency of 20.0% performs 2500 J of work. How much heat is discharged to the lower temperature reservoir |

Explain what additional piece of data : What additional piece of data would be needed to complete the calculations for the experiment |

Calculate the amount of ice melted : Steam at 100°C is added to ice at 0°C. Find the amount of ice melted and the final temperature when the mass of steam is 14 g and the mass of ice is 51 g. g °C |

## Find the magnitude of the resulting magnetic fieldA sphere of radius R is uniformly charged to a total charge of Q. It is made to spin about an axis that passes through its center with an angular speed ω. Find the magnitude of the resulting magnetic field at the center of the sphere. |

## Find the equivalent resistanceA resistor is in the shape of a cube, with each side of resistance R . Find the equivalent resistance between any two of its adjacent corners. |

## What is the electric field at the locationQuestion: Field and force with three charges? What is the electric field at the location of Q1, due to Q 2 ? |

## What is the maximum displacement of the bridge deckWhat is the maximum displacement of the bridge deck? |

## What is the magnitude of the current in the wireWhat is the magnitude of the current in the wire as a function of time? |

## Introductory mechanics: dynamicsCalculate the smallest coefficient of static friction necessary for mass A to remain stationary. |

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