An Astronomer is in a spaceship that is orbiting around a planet with a period of 34 hours. The spaceship is a distance of 3 x 107 m away from the planet's center. What is the mass of the planet? How far from the planet would a moon have to orbit to have the same period (28 days) as our moon?

Calculate the average force exerted by the ball on the wall : A ball of mass 10.7 g with a speed of 27.1 m/s strikes a wall at an angle 24.0o and then rebounds with the same speed and angle. calculate the average force exerted by the ball on the wall |

Compute the ratio of the differential tidal force delta f : Imagine a test particle of mass m at the point on the Earth's surface closest to the moon. Compute the ratio of the differential tidal force |delta F| acting on this particle |

Explain what mass of helium is in the blimp : The Goodyear blimps, which frequently fly over sporting events, hold approximately 1.60×105 ft^3 of helium. If the gas is at 25deg C and 1.0 atm, what mass of helium is in the blimp |

Calculate the weight of the rod : On a part-time job, you are asked to bring a cylindrical iron rod of density 7800kg/m3 , length 91.6cm and diameter 3.00cm from a storage room to a machinist. Calculate the weight of the rod |

Obtain the mass of the planet : An Astronomer is in a spaceship that is orbiting around a planet with a period of 34 hours. What is the mass of the planet |

State the volume the gas will occupy : A fixed quantity of gas at 22 deg C exhibits a pressure of 754torr and occupies a volume of 5.52L . Calculate the volume the gas will occupy if the temperature is increased to 175 deg C while the pressure is held constant. |

Find the acceleration of the lighter block : A 1.7 kg block and a 2.3 kg block are attached to opposite ends of a light rope. Find the acceleration of the lighter block |

Explain molecular formula and molecular structure : In what form does BH3 ordinarily exist? Give the name, molecular formula, and molecular structure of this substance. |

Determine final temperature and the percent of flash steam : When the pressure on saturated liquid water is suddenly reduced to a lower pressure in an adiabatic and aergonic process, the liquid's temperature must also be reduced to reach a new equilibrium state. |

## 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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