Electronics and inhabitants of the International Space Station generate a significant amount of thermal energy that the station must get rid of. The only way that the station can exhaust thermal energy is by radiation, which it does by using thin, 1.8-m-by-3.6-m panels that have a working temperature of about 6C. How much power is radiated from each panel? Assume that the panels are in the shade so that the absorbed radiation will be negligible. Assume that the emissivity of the panel is 1.0.

## What is the density of the solventA cylindrical storage tank has a radius of 1.11 m. When filled to a height of 3.81 m, it holds 15,301 kg of a liquid industrial solvent. What is the density of the solvent |

## Find the new equilibrium temperature of the gasAn isolated piston+ cylinder arrangement shown contains a diatomic ideal gas at 300 K at equilibrium. find the new equilibrium temperature of the gas |

## Obtain the magnitude of the force on the wireA horizontal magnetic field of 2.0×10?4 T is at an angle of 25 to the direction of the current in a straight, horizontal wire 75 cm long. what is the magnitude of the force on the wire |

## Calculate the distance along the groundAn airplane with a speed of 69.8 m/s is climbing upward at an angle of 40° with respect to the horizontal. Calculate the distance along the ground, measured from a point directly beneath the point of release |

## What is the angular speed of the diskA 20-kg rotating disk of radius 0.30m has an angular momentum of 0.40kg?m2/s. What is the angular speed of the disk |

## Determine the volume of helium gas at stpThe helium atom has a volume of about 3 x 30^-30 (m^3). What fraction of a volume of helium gas at STP is actually occupied by atoms |

## Find the average value of the squared speedThe average value of the squared speed does not equal the square of the average speed. find the average value of the squared speed |

## What is her speed at the bottom of the hillA snowboarder starts from rest and glides down a hill that is 100m high. Assuming no friction, what is her speed at the bottom of the hill |

## Find out the coefficient of kinetic frictionTwo spheres, fastened to "pucks" riding on a frictionless air track, are charged with +2 × 10-8 C, and +6 × 10-8 C, correspondingly. Both objects have the same mass. As they repel. |

## What is the entropy change of the aluminum-water systemIn an experiment, 300 g of aluminum (with a specific heat of 900 J/kg·K) at 100°C is mixed with 54.0 g of water (4186 J/kg·K) at 20°C, What is the entropy change of the aluminum-water system |

## What is the radius of the dropletAn oil droplet with 15.0 excess electrons is observed between two parallel electrodes spaced 14.0mm apart. What is the radius of the droplet |

## How long does it take for teds railroad car to pass aliceTed is traveling on his railroad car (length 30 m) at speed v = 0.6 c as shown in the figure. As measured on Alice's clock, how long does it take for Ted's railroad car to pass Alice |

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