Two stretched cables both experience the same stress. The first cable has a radius of 3.6x10-3 m, and is subject to a stretching force of 270 N. The radius of the second cable is 4.8x10-3 m. Determine the stretching force on the second cable.

Find the length of time the car could run : A car is designed to get its energy from a rotating flywheel (solid disk) with a radius of 1.00 m and a mass of 475 kg. find the length of time the car could run before the flywheel would have to be brought back up to speed |

Explain hydrazoic acid has a chemical formula of hn3 : Hydrazoic acid has a chemical formula of HN3. It is a volatile and toxic acid with a Ka value of 2.5 X 10^-5. Although it might not be the best choice, a student prepares a buffer using HN3 and NaN3 solutions. |

Evaluate the new angular speed of the student : A student sits on a rotating stool holding two 2.9-kg objects. When his arms are extended horizontally, the objects are 1.0 m from the axis of rotation and he rotates with an angular speed of 0.75 rad/s, Find the new angular speed of the student |

How to calculate the equilibrium concentration of h2 : Suppose at some temperature, Kc= 6.20 X 10^8 for the reaction 2NO(g) + 2H2(g) N2 (g) + 2H2O(g). 5.00 M NO(g) and 5.00 M H2 (g) are placed in a reaction flask. Calculate the equilibrium concentration of H2 (g) |

Calculate the stretching force on the second cable : Two stretched cables both experience the same stress. The first cable has a radius of 3.6x10-3 m, and is subject to a stretching force of 270 N. Determine the stretching force on the second cable |

Evaluate the percent of sodium carbonate in the mixture : A 25.00mL portion of this solution required 17.56mL of hydrochloric acid(0.1396 mol/L) for complete neutralization. Calculate the percent of sodium carbonate in the mixture. |

How to calculate the approximate ph of a solution : Please use the information given regarding molybdic acid. Molybdic acid is diprotic acid with the formula, H2MoO4. The values of Ka1 and Ka2 are approximately 6.3 X 10^-5 and 6.3 X 10 ^-9. Calculate the approximate pH of a 0.750M H2MoO4 solution. |

Explain a buffer is prepared by mixing hcl and sodium acetat : A buffer is prepared by mixing 204mL of .452M HCL and .500L of .400M sodium acetat. (a) What is the pH? (b) How many grams of KOH must be added to .500L of the buffer to change the pH by .15 units |

Find the water speed in this narrowed portion of the stream : A stream moving with a speed of 0.8 m/s reaches a point where the cross-sectional area of the stream decreases to one-half of the original area |

## 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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