Your spaceship lands on an unknown planet. To determine the characteristics of this planet, you drop a 1.20 kg wrench from 5.00 m above the ground and measure that it hits the ground 0.811 s later. You also do enough surveying to determine that the circumference of the planet is 6.40×104 km . What is the mass of the planet, in kilograms? Express the planet’s mass in terms of the earth’s mass.

Center of curvature of the curve : As your bus rounds a flat curve at constant speed, a package with mass 0.300 kg , suspended from the luggage compartment of the bus by a string 50.0 cm long, is found to hang at rest relative to the bus, with the string making an angle of 30.0 degree.. |

Create artificial gravity in a space station is to spin it : Artificial gravity. One way to create artificial gravity in a space station is to spin it. If a cylindrical space station 275 m in diameter is to spin about its central axis, at how many revolutions per minute (rpm) must it turn so that the outermost.. |

Communications satellites are used to bounce radio waves : Communications satellites are used to bounce radio waves from the earth's surface to send messages around the curvature of the earth. In order to be available all the time, they must remain above the same point on the earth's surface and must move.. |

Neutron stars such as the one at the center of crab nebula : Neutron stars, such as the one at the center of the Crab Nebula, have about the same mass as our sun, but a much smaller diameter. If you weigh 670 N on the earth, what would you weigh on the surface of a neutron star that has the same mass as our su.. |

What is the mass of the planet in kilograms : Your spaceship lands on an unknown planet. To determine the characteristics of this planet, you drop a 1.20 kg wrench from 5.00 m above the ground and measure that it hits the ground 0.811 s later. You also do enough surveying to determine that the c.. |

Force exerted by the water on the bottom of the container : A container has a large cylindrical lower part with a long thin cylindrical neck. The lower part of the container holds 12.5 m3 of water and the surface area of the bottom of the container is 4.64 m2. The height of the lower part of the container is .. |

Find the drag force on the sled : A 100 kg sled is slid across a smooth ice field by a group of four dogs tied to the sled pulling with a 350 N force along a rope at an angle of 20 degrees above the horizontal. (a) If the sled travels at a constant speed, find the drag force on the s.. |

Find the capacitance of the second capacitor : A capacitor is connected across the terminals of an ac generator that has a frenquency of 460 Hz and supplies a voltage of 24 V. When a second capacitor is connected in parallel with the first one, the current from the generator increases by 0.18 A. .. |

Find the net external force acting on the system : A system consists of two particles. At = 0 one particle is at the origin; the other, which has a mass of 0.50 , is on the -axis at = 6.0. At = 0 the center of mass of the system is on the -axis at = 2.4. The velocity of the center of mass is given.. |

## How far does the electron go before it comes backA very long, thin straight line of charge has a constant charge density of 20pC/cm. How far does the electron go before it comes back |

## Find the coefficient of friction between desk and floorYou decide to move your desk so your back is not facing the door. As you begin to move your desk, What is the coefficient of friction between the desk and the floor |

## A horizontal surface at constant velocityA woman pulls a loaded sled of mass m = 75 kg along a horizontal surface at constant velocity |

## Question1visualize a crystal that exploits for bindingquestion1visualize a crystal that exploits for binding coulomb attraction of the positive andnbspnegative ions of the |

## What is its molar specific heat at constant pressureA certain ideal gas has a molar specific heat at constant volume CV = 7R/5. What is its molar specific heat at constant pressure |

## Calculate the magnitude of the average force of the batA pitcher pitches a baseball of mass 0.20 kg. The baseball arrives at home plate with a speed of 40 m/s and is batted directly back to the pitcher (horizontally) with a return speed of 50 m/s. find the magnitude of the average force of the bat on .. |

## What is the smallest angle between floor and ladderA ladder of unknown length and mass of 29.00 kg rests on a rough floor, and leans against a rough wall. The coefficient of static friction between the ladder and both the floor and wall are 0.68. |

## Determine the resonant frequency of the circuitA 1 kohm resistor is placed in series with the 0.5 mH inductor and the 0.01 ?F capacitor. What is the resonant frequency of the circuit |

## Find the total work done by wall on the rocket/coyote systemWiley Coyote and his Acme rocket, together having inertia of 1000kg, are speeding after roadrunner. find the total work done by the wall on the rocket/coyote system |

## Calculate the density of the blockA plastic block of dimensions 2.5 cm x 3.8 cm x 4.0 cm has a mass of 28.0 g. What is the density of the block |

## Find out the equivalent resistance outside the batteryFairgoers ride a Ferris wheel with a radius of 4.35m, the bottom of which is 1.75m from the ground. The wheel completes one revolution every 30s. A passenger drops his keys when he is three quarters of the way up and at the 10 o'clock position. Wh.. |

## What is the force acting on a hatchA submarine dives to a depth of 157 feet in the ocean. What is the force (in pounds) acting on a hatch |

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