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

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 |

Explain the ionic compound nf4sbf6 : Reaction between NF3, F2, and SbF3 at 200 degrees C and 100 atm pressure gives the ionic compound NF4SbF6: Nf3(g) + 2F2(g) + SbF3(g) -> NF4SbF6 (s) |

What is the maximum altitude she attains : A ski jumper starts from rest 59.0 m above the ground on a frictionless track and flies off the track at an angle of 45.0° above the horizontal and at a height of 16.0 m above the ground, What is the maximum altitude she attains after leaving the t.. |

## Determine the cars linear speedA 1000 kg race car makes three and half laps around a circular race track with a 400m radius in 180 sec at a constant speed. determine the car's linear speed |

## Find the potential difference that stopped the protonA proton with an initial speed of 800000 is brought to rest by an electric field. What was the potential difference that stopped the proton |

## What current is required in the windings for that to occurA long solenoid that has 1,105 turns uniformly distributed over a length of 0.452 m produces a magnetic field of magnitude 1.00 10-4 T at its center |

## What is the total acoustic power output of the sourceA certain source of soundwaves radiates uniformly in all directions. What is the total acoustic power output of the source |

## What is the value of the normal forceA man pulls a 50.0 kg box at constant speed across the floor. What is the value of the normal force |

## Compute what is the magnitude of the electric fieldA proton is moving parallel to a uniform electric field. What is the magnitude of the electric field |

## Find entropy change of the horseshoe-plus-water systemIf so how fast will the cars be traveling when they collided? If they did not, what is a distance between the cars at this point. |

## What is the spacing between the atomic platesA beam of X-rays having a wavelength of .09nm impinges on an unknown crystal. What is the spacing between the atomic plates |

## How much less power is wasted in the transmission wiresA 676kW power station delivers power to a factory, How much less power is wasted in the transmission wires if the electricity is delivered from the power station at 54200V rather than 13700V |

## What is the elevator''s power outputAn elevator is able to raise 9,800 N to a height of 37 m in 12 s, What is the elevator's power output and How much work does the elevator do |

## Explain the hall effectWhat is the Hall effect, give a real life example, list its applications, When an electric light bulb is operated on a low frequency AC, they noticeably flicker |

## What is the average accelerationAn asteroid is discovered heading straight toward Earth at 15km/s. An international team manages to attach a giant rocket engine to the asteroid. The rocket fires for 10 min, after which the asteroid is moving at 29degree to its original path at a.. |

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