A 11.1-kg cylinder rolls without slipping on a rough surface. At an instant when its center of gravity has a speed of 10.3 m/s, determine the following. (a) the translational kinetic energy of its center of gravity ____J (b) the rotational kinetic energy about its center of gravity _____ J (c) its total kinetic energy ____J

Explain the sum of the coefficients in the balanced equation : The following reaction occurs in basic solutions. What is the sum of the coefficients in the balanced equation. MnO4- + NH3 ----> NO3- + MnO2 |

Determine what is the oscillators speed : A simple harmonic oscillator has spring constant k = 6.6N/m , amplitude A = 12cm , and maximum speed 4.6m/s. What's the oscillator's speed when it's at x = 5.8cm |

Recalling that an object smaller than the wavelength : Recalling that an object smaller than the wavelength illuminating it cannot be "seen", what is the minimum kinetic energy of electrons needed in an electron microscope in order to "see" an atoms whose diameter is 0.1 nm, about the size of a silicon a.. |

What fraction of the systems energy is kinetic energy : A mass-spring system undergoes simple harmonic motion with amplitude A. What fraction of the system's energy is kinetic energy when the object's position is x=A/2 |

The translational kinetic energy of its center of gravity : A 11.1-kg cylinder rolls without slipping on a rough surface. At an instant when its center of gravity has a speed of 10.3 m/s, determine the following. (a) the translational kinetic energy of its center of gravity ____J (b) the rotational kinetic en.. |

Explain a voltaic cell is made by placing an iron electrode : A voltaic cell is made by placing an iron electrode in a compartment in which the Fe2+ concentration is 4.5 x 10^-5 M and by placing a Pt electrode in the other compartment, in which the H+ concentration is 3.50 M and P(subscript H2) = 1.00 atm. |

Find the frequency of its simple harmonic motion : A mass-spring system has k = 55.2N/m and m = 0.405kg. Find the frequency of its simple harmonic motion |

Tung- sten filament that has an emissivity : Calculate the temperature at which a tung- sten filament that has an emissivity of 0.25 and a surface area of 6.6×10?5 m2 will radiate energy at the rate of 51Win a roomwhere the temperature is 26?C. The Stefan-Boltzmann constant is 5.6696 × 10?8 W/m.. |

Assume all temperatures to be exact : Assume all temperatures to be exact. Ice (initially at 0 ) is added to 0.50L of tea at 18C to make the coldest possible iced tea. If enough ice is added so the final mixture is all liquid, how much liquid is in the pitcher when this condition occurs? |

## Determine the final temperature of the mixtureIf you have 0.326 m^3 of water at 25 degrees celsius and add 0.127 m^3 of water at 95 degrees celsius; what is the final temperature of the mixture |

## What speed must she have at point 3A stone is dropped from the top of the cliff. The splash it makes when striking the water below is heard 3.5 seconds after it is dropped. How high is the cliff? Presume that the speed of sound in air is 343 m/s and g = 9.8 m/s2. |

## Determine angle do the poles make with the verticalTwo identical uniform poles of mass 50 kg and linear mass density 15 kg/m are supported by pivots 2 m apart on level ground. what angle do the poles make with the vertical |

## Compute the phase angle of the circuitAn RLC circuit is set up with a 350 mH inductor, a 6.8 mF capacitor and a 550 W resistor. What is the phase angle of the circuit |

## Compute the volume of the objectAn object is solid throughout. When the object is completely submerged in ethyl alcohol, its apparent weight is 15.0 N. What is the volume of the object |

## What is the length of the pipesTwo pipes of the same length are both made to vibrate at their lowest resonant frequency. What is the length of the pipes? |

## Find the distance from the top of the wood to water surfacea rectangular wooden slab with length =2.0m, width=2.0m, and height=1.0m is used as a floating device in a play water pond. find the distance from the top of the wood to the water surface |

## Explain how long does it take the boat to make a round tripIf the water in the river is flowing at 3.0 m/s, explain how long does it take the boat to make a round trip consisting of a 250 m displacement downstream followed by a 250 m displacement upstream? |

## Power crossing a surface perpendicular is equal to intensityThe power crossing a surface perpendicular is equal to the intensity at the surface times the area of the surface. Since the source emits uniformly in all directions, the light intensity is the same at all points on the imaginary spherical surface.. |

## Use a + sign if the direction is towards m2Two spheres with masses m1 = 820 kg and m2 = 830 kg are separated by 0.230 m. What is the net gravitational force from them on a 3.0 kg sphere located 0.161 m from m1 and 0.069 m from m2? Use a + sign if the direction is towards m2 and a - sign if.. |

## What is the volume flow rate during the squirtA child's water pistol shoots water through a 1.0mm -diameter hole. What is the volume flow rate during the squirt |

## Find the rotation period for a massA mass of 0.450 kg rotates at constant speed with a period of 1.45 s at a radius of R 0.140 m . What is the rotation period for a mass of 0.550kg at the same radius |

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