You are at the controls of a particle accelerator, sending a beam of 2.70×107 protons (mass ) at a gas target of an unknown element. Your detector tells you that some protons bounce straight back after a collision with one of the nuclei of the unknown element. All such protons rebound with a speed of 2.40×107. Assume that the initial speed of the target nucleus is negligible and the collision is elastic.

Artificial gravity is a must for any space station : Artificial gravity is a must for any space station if humans are to live there for any extended length of time. Without artificial gravity, human growth is stunted and biological functions break down. An effective way to create artificial gravity .. |

Force responsible for centripetal acceleration in this case : A NASCAR racecar rounds one end of the Martinsville Speedway. This end of the track is a turn with radius approximately 187 ft. If we approximate the track to be completely flat and the racecar is traveling at a constant 68.00 mph around the turn,.. |

What is the ratio od the orbital speed v of phobos to deimos : The moons of mars phobos and deimos are very close to the planet compared to earths moon their orbital radii are 9378 and 23459. what is the ratio od the orbital speed v of phobos to deimos |

Determine the change in the internal energy of the system : A system receives 107 joules in the form of heat energy in a specified process and it produces work of 4*10^6 joules. The system velocity changes from 10km/s to 25 km/s and its elevation changes from 20m to 12m. The mass of the system is 50 kg. Deter.. |

Target nucleus is negligible and the collision is elastic : You are at the controls of a particle accelerator, sending a beam of 2.70×107 protons (mass ) at a gas target of an unknown element. Your detector tells you that some protons bounce straight back after a collision with one of the nuclei of the unk.. |

Difference between an ionic bond and a covalent bond : Describe the difference between an ionic bond and a covalent bond. Give an example of a compound that exhibits ionic bonding. Give an example of a compound that exhibits a covalent bond. |

An isotope of the element thallium : An isotope of the element Thallium, Tl-206, undergoes beta decay with a half life of 3.1 minutes. Assume you begin with 1.0 grams of the thallium isotope, what mass of the isotope will be left after 9.3 minutes have elapsed? |

What is the capacitance of this second capacitor : A 190 pF capacitor is charged to a potential difference of 120 V, and the charging battery is disconnected. The capacitor is then connected in parallel with a second (initially uncharged) capacitor. If the measured potential difference drops to 100 V.. |

Calculate energy density in electric field-surface of sphere : A charged isolated metal sphere of diameter 24.0 cm has a potential of 7400 V relative to V = 0 at infinity. Calculate the energy density in the electric field near the surface of the sphere. |

## What is the magnification of the instrumentA compound microscope has objective and eyepiece focal lengths of 6.1mm and 1.9 cm , respectively. what is the magnification of the instrument |

## What is the maximum number of lead shot ballsYou are a professional frontier re-enactor who specializes in making lead shot. To do this you put 2 kg of ice into 2 kg of water, both at 0 C, into an insulated bucket. |

## What is the current if the emf frequency is doubledThe peak current through an inductor is 11mA. What is the current if the emf frequency is doubled |

## What is the equation for the mass moment of inertiawhat is the equation for the mass moment of inertia of a mass rotating around a sliding hinge |

## Determine the direction of the couples displacementOne afternoon, a couple walks three-fourths of the way around a circular lake, the radius of which is 1.08 km. What is the direction (relative to due east) of the couple's displacement |

## Find the ideal mechanical advantage of this incline planeA man pushes a heavy box up a plank inclined at an angle of 30. Calculate the ideal mechanical advantage of this incline plane |

## Q1 a radio station broadcasts at a frequency of 600000 hzq1. a radio station broadcasts at a frequency of 600000 hz. know that radio waves have a speed of 3.00 x 108ms what is |

## Find the oxygen concentration at the interior end of tubeInsects do not have lungs as we do, nor do they breathe through their mouths. Instead, they have a system of tiny tubes, called tracheae, through which oxygen diffuses into their bodies. find the oxygen concentration at the interior end of the tube |

## Determine the charge on plates before and after immersionA parallel-plate capacitor in air has a plate separation of 1.49 cm and a plate area of 25.0 cm2. The plates are charged to a potential difference of 255 V and disconnected from the source. |

## What are the original speeds of the son and fatherA father racing his son has 1/2 the kinetic energy of the son, who has 1/3 the mass of the father. What are the original speeds of the son and father |

## What is the magnitude of the magnetic flux through the ringa 0.065 t magnetic field passes through a circular ring of radius of 4 cm at an angle of 25 dregrees with the normal. what is the magnitude of the magnetic flux through the ring |

## What is the electric dipole momentAn electric dipole consists of a +2.25 nC charge and a -2.25 nC charge separated by a distance of 1.50 x 10-6 m. The negative charge is located above (y-direction) the positive charge. What is the electric dipole moment? |

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