An inexpensive microscope has a tube length of 12.0cm , and its objective lens is labeled with a magnification of 10x. Calculate the focal length of the objective lens. (Assume the normal reading-distance equals to 25cm.)

Light bulbs in series and in parallel : Light Bulbs in Series and in Parallel. Two light bulbs have resistances of 500 ? and 1000 ?. The two light bulbs are connected in series across a 110 V line. (a) Find the current through the 500 ? bulb. A Find the current through the 1000 ? bulb. .. |

Explain what is the so42- concentration : Determine the concentration of SO42- necessary to precipitate BaSO4 and SrSO4. Which compound, BaSO4 and SrSO4, precipitates first. What is the SO42- concentration when the second ion begins to precipitate |

What is the magnitude of the magnetic field there : A long solenoid with 9.28 turns/cm and a radius of 7.85 cm carries a current of 15.8 mA. What is the magnitude of the magnetic field there |

What were the advantages of strategy : 1. How would you characterize P&G's product development and marketing strategy toward Japan in the 1970s and 1980s? What were the advantages of this strategy? What were the drawbacks? |

Calculate the focal length of the objective lens : An inexpensive microscope has a tube length of 12.0cm , and its objective lens is labeled with a magnification of 10x. Calculate the focal length of the objective lens |

Explain the ag+ concentration when bacro4 to precipitate : 0.10M potassium chromate is slowly added to a solution containing 0.50 M AgNO3 and 0.05 M Ba(NO4)2. What is the Ag+ concentration when BaCrO4 just starts to precipitate. The Ksp for Ag2CrO4 and BaCrO4 are 1.1 x 10^-12 and 1.2 x 10^-10 respectively.. |

Compute the magnitude of the force on the particle : a particle with positive charge q = 6.40 x 10-19 C moving with speed v = 8.13 x 105 m/s toward a long straight wire with current i = 229 mA, What is the magnitude of the force on the particle due to the current |

City of charlottesville 2010 annual comprehensive plan : City of Charlottesville 2010 Annual Comprehensive Plan |

Determine how much mass is converted per hour : A certain nuclear power plant is capable of producing 1.3×109 W of electric power. How much mass is converted per hour if the efficiency of the plant is 29 percent |

## Find the force required to launch the aircraftAn aircraft weighing 902 N is accelerated at 10.8 m/s/s for 5 seconds, at which time the aircraft launches. What is the force required to launch the aircraft |

## How long must the engines be firedAs a space craft approaches a planet, the rocket engines on it are fired to slow it down so it will go into orbit around the planet. how long must the engines be fired |

## What is the direction of the elevators accelerationWhen you weigh yourself on good old terra firma (solid ground), your weight is 144 lb . In an elevator your apparent weight is 124 lb.What is the magnitude of the elevator's acceleration? What is the direction of the elevators acceleration? |

## Obtain how much energy will be stored in the capacitorA parallel-plate capacitor is made from two plates 12.5 cm on each side and 4.20 mm apart. obtain how much energy will be stored in the capacitor |

## Determine the minimum diameter must the wire haveA brass wire is to withstand a tensile force of 350N without breaking. What minimum diameter (in mm) must the wire have |

## What is the mass of the second pieceAfter a satellite is blown apart, the first part has speed v1 = 0.63c and the second one has a speed v2 = 0.91c. what is the mass of the second piece |

## Determine the initial and the final pressures of refrigerantA closed, stationary, rigid tank contains Refrigerant 134a, initially at 100oC. The refrigerant is cooled until it becomes saturated vapor at 20oC. Determine the initial and the final pressures of the refrigerant and the heat transfer during the proc.. |

## Calculate the size of the force on the carA car of mass 1.00×103kg and a truck of mass 4.10×103kg run into one another due to ice on the road. Calculate the size of the force on the car due to the truck at that time |

## Find the velocity of the balls just after the collisionA 2kg ball moving east with a speed of 3m/s collides with another 3kg ball moving west with a speed of 4m/s . After the collision the two balls stick together |

## Determine the magnitude of the angular accelerationA flywheel rotates with an angular speed of 22 rev/s . As it is brought to rest with a constant acceleration, it turns 46 rev. What is the magnitude of the angular acceleration |

## What is the maximum distance that the planeAn inductor used in a dc power supply has an inductance of 13.0 H and a resistance of 230 Omega. It carries a current of 0.210 A. What is the energy stored in the magnetic field? At what rate is thermal energy developed in the inductor? Does your rep.. |

## Calculate the angular acceleration of the cylinderA solid cylinder of mass 10 kg is pivoted about a frictionlessaxis through the center O. What is the angular acceleration of the cylinder |

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