A 120cm3 box contains helium at a pressure of 2.20atm and a temperature of 80.0â??C. It is placed in thermal contact with a 210cm3 box containing argon at a pressure of 3.70atm and a temperature of 420â??C. What is the initial thermal energy of each gas?

## Write the displacement vector from aircraftwhose first two components are the polar coordinates of the horizontal displacement between the planes, and whose third coordinate is the vertical displacement between the planes. Consider east to be the positive x axis and north to be the positiv.. |

## What is the y-component of electric force on a protonA particle moves with constant acceleration a. The expression v1+at represents the particle's velocity at what instant in time. |

## What is the flea''s acceleration during the jump phaseWhen jumping, a flea reaches a takeoff speed of 1.2 m/s over a distance of 0.46mm, What is the flea's acceleration during the jump phase and How long does the acceleration phase last |

## Assume all surfaces to be frictionlessWhat is this value? In this state, the interference pattern still appears showing that each individual electron can interfere with itself. |

## What is the amplitude of the subsequent oscillationA 750 air-track glider attached to a spring with spring constant 10.5 is sitting at rest on a frictionless air track. A 475 glider is pushed toward it from the far end of the track at a speed of 118 . |

## What is the cost in dollars to heat this houseA flowerpot falls off a windowsill and falls past the window below. You may ignore air resistance. It takes time 0.420s to pass this window, which is of height 1.92 m. How far is the top of the window below the windowsill from which the flowerpot .. |

## The specific weight of the unknown liquidThe manometer tube has an internal diameter of 0.5 cm and it is initially filled with water. Exactly 2 cm3 of an unknown liquid is then poured into one leg of the manometer, and a displacement of 5 cm between the surfaces is measured as shown. Fin.. |

## Find coefficient of kinetic friction between crate and tablefind the coefficient of kinetic friction between the crates and the table. |

## Define what is the unknown capacitancedefine what is the unknown capacitance. what focal length eyepiece should she use. |

## Define the magnitude of the charge on each sphereA 1000 kg experimental rocket sled on a level frictionless rail is loaded wiht 50kg of propellant. It exhausts the propellant in a 20-s "burn". If rocket, initially at rest, moves at 150m/s after the burn, what impulse is experienced by the rocket.. |

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