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 sun and a diameter of 20.0 km?

Water drips from the nozzle of a shower onto the floor : Water drips from the nozzle of a shower onto the floor 235 cm below. The drops fall at regular (equal) intervals of time, the first drop striking the floor at the instant the fourth drop begins to fall. Find the location of the third drop as measured.. |

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. .. |

## Determine the width of the boxA small device based on the confinement of a proton in a 1 dimensional box is found to have a ground (i.e. n = 1) level energy of 16.9 keV. Determine the width of the box |

## Determine the size of the force on the wireWhat is the size of the force on the wireA horizontal wire of length 3.0 m carries a current of 6.0 A and is oriented so that the current direction is 50° S of W. What is the size of the force on the wire |

## Find the magnitude of the acceleration of the boxTwo forces are acting on a 9.5 kg box on a frictionless surface. Force A has a magnitude of 44 N, Find the magnitude of the acceleration of the box |

## Determine the banking angleA velodrome track is banked so that a bicycle traveling at 78.2 km/h will have no tendency to slip to either side when traveling on the path that has a radius of curvature of 76.0 m |

## Find the wavelength of the light used in the experimentTwo slits with a separation of 8.5 x 10^(-5) m create an interference pattern on a screen 2.3 m away. find the wavelength of the light used in the experiment |

## How much work must be done by the brakesA thin, circular disc is made of lead and has a radius of 0.0350 cm at 20.0 °C. find out the change in the area of the circle if the temperature is increased to 625.0 °C. The coefficient of linear thermal expansion for lead is 29.0 x 10-6/C°. |

## Find the wave speedThe distance between two successive minima of a transverse wave is 2.45 m. Five crests of the wave pass a given point along the direction of travel every 14.5 s. (a) Find the frequency of the wave. Hz (b) Find the wave speed. m/s |

## What is the distance between the particlesTwo alpha particles (helium nuclei), each consisting of two protons and two neutrons, What is the distance between these particles at this time |

## Calculate the stretching force on the second cableTwo stretched cables both experience the same stress. The first cable has a radius of 3.6x10-3 m, and is subject to a stretching force of 270 N. Determine the stretching force on the second cable |

## Find how far did it travel in this timeA train is slowing down from 46 m/s to 12 m/s in 9.0 s. Assume constant acceleration. How far did it travel in this time |

## What is the temperature of the bottom of the potA glass coffee pot has a circular bottom with a 9.00cm diamteter in contact with a heating element that keeps the coffee warm with a continous heat transfer rate of 50.0w, what is the temperature of the bottom of the pot, if it is 3.00mm thick and.. |

## What is magnitude of the force of friction acting on fridgeYour refrigerator has a mass of 124.7 kg, including the food in it. It is standing in the middle of your kitchen, and you need to move it. The coefficients of static and kinetic friction between the fridge |

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