A 6.61 mC particle moves through a region of space where an electric field of magnitude 1260 N/C points in the positive x direction, and a magnetic field of magnitude 1.17 T points in the positive z direction. If the net force acting on the particle is 6.02E-3 N in the positive x direction, calculate the magnitude of the particle's velocity. Assume the particle's velocity is in the x-y plane.

## Calculate the average density of a red giant starCalculate the average density of a red giant star in grams per cubic centimeter. Take the star's mass to be 2*10^33 gm and its radius to be 3*10^12 cm |

## What is the electric flux through the top face of the boxIn soccer, a speed record was set for kicking a soccer ball at 43m/s. If the soccer player kicked the ball from ground level at an angle of 30° from the horizontal, what would be the flight time of the soccer ball? Assume that air resistance is ne.. |

## What is the magnetic force acting on the duckA duck flying horizontally due north at 14.2 m/s passes over Atlanta, where the magnetic field of the Earth is 5.09×10-5 T in a direction 55.9° below a horizontal line running north and south. The duck has a positive charge of 3.28×10-8 C. What is th.. |

## What focal length is needed for her objective lensA grade school student plans to build a 34-power telescope as a science fair project. What focal length is needed for her objective lens |

## Explain how many shares will fred have after this splitFred Jones owns 56 shares of the Robust Corporation's stock. Robust announces a 3 for 2 stock split. Explain how many shares will Fred have after this split? |

## Calculate the maximum emf induced in the coilA 110 turn square wire coil of area 0.040 m2 rotates about a vertical axis at 1700 rev/min, Calculate the maximum emf induced in the coil by the Earth's field |

## Calculate the index of refraction of the substanceThe critical angle for total internal reflection for sapphire surrounded by air is 34.4°. Calculate the index of refraction of the substance |

## Find the magnitude of the acceleration of a falling skydiverWhat is the magnitude of the acceleration of a falling sky diver (mass 62.5kg including parachute) who has opened her parachute |

## Find the period of simple harmonic motion for this pendulumA simple pendulum is 7.00 m long. What is the period of simple harmonic motion for this pendulum if it is located in an elevator accelerating upward at 5.00 m/s2 |

## Find the change in capacitance that is detected by computerOne common kind of computer keyboard is based on the idea of capacitance. Each key is mounted on one end of a plunger, find the change in capacitance that is detected by the computer |

## A simple harmonic oscillator consists of a block of massBlock 1, of mass = 0.500 , is connected over an ideal (massless and frictionless) pulley to block 2, of mass , as shown. Assume that the blocks accelerate as shown with an acceleration of magnitude = 0.300 and that the coefficient of kinetic frict.. |

## How high is the top of the ski lift relative to the baseHow high is the top of the ski lift relative to the base. |

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