Three point charges, -6.05 10-9 C, -9.40 10-9 C, and +7.25 10-9 C, are fixed at different positions on a circle. The total electric potential at the center of the circle is -2070 V. What is the radius of the circle?

What would total bus 3 impedance be including impedance : The parts of this problem refer to the reflection method of solving real transformer problems: A.What is the value of Zload projected into bus (Region) 2 B.What is the total impedance of bus 2 including the projection |

Major stock markets have indicated strong gains : Major stock markets have indicated strong gains in the last 12months. The one year return for the S&P 500, a group of500 large companie, was approximately +27%. The one yearreturn for the Russell 2000, a group of 2000 small companies wasapproximately.. |

Determine the potential difference across each capacitor : A 0.50-?F and a 1.4-?F capacitor (C1 and C2, respectively) are connected in series to a20-V battery, lculate the potential difference across each capacitor? V1 and V2 |

Purchase bonds having an annual percentage : Suppose you wish to purchase bonds having an annual percentage yield of 6.45% at the beginning of 1999 and plan to hold them until maturity at the end of 2003. |

Determine the radius of the circle : Three point charges, -6.05 10-9 C, -9.40 10-9 C, and +7.25 10-9 C, are fixed at different positions on a circle. What is the radius of the circle |

Describe a general opinion poll or survey : Describe a political poll or survey. Analyze the number of people who participated in the sample compared to the number in the population and discuss how the results of the survey can be used to tell a story or support an idea of the sponsoring comp.. |

How to calculate the molarity of each of the solutions : calculate the molarity of each of the following solutions: a) .500 mol of sucrose in .200 L of a sucrose solution. b) 30.4g of LiBr in 350 mL of a LiBr solution. c) 73.0 g of HCl in 2.00 L of a HCl solution. |

Explain which metal would provide the worst protection : Which metal would provide the worst protection for an iron pipe buried in the ground if attached to an iron pipe, Ag, Cu, Zn, Mg |

Calculate the unknow constant in homogeneous part : Solve y"+y'-2y=2x^2, y(0) = 0, y'(0) = 1 following these steps a) find homogeneous solution, b) find nonhomogeneous solution with method of undetermined coefficient with constants evaluated, |

## Analysis of physicsAnalysis of Physics, Two pistons push down on the fluid filling two cylinders connected by a narrow hose, as shown in the figure. The area A1 is 1 square inch, and the area A2 is 10 square inches |

## What is the magnitude of the potential differenceTwo metal conductors that are separated by a distance of 0.89 mm. When an electric spark jumps between them, What is the magnitude of the potential difference |

## What is the tension between each cableAt one instant a bicyclist is 75m due east of a park's flagpole, going due south with a speed of 13.0 m/s. Then, 10s later, the cyclist is 65 m due north of flagpole, going due east with a speed of 20.0 m/s. |

## Compute the gravitational potential energyAfter the Sun exhausts its nuclear fuel, its ultimate fate might be to collapse to a white dwarf state. In this state, it would have about the same mass as it has now, but its radius would be equal to the radius of the Earth. |

## What is the cutoff frequency for the emitterLight of a wavelength 450 nm is incident on a sodium emitter in a photoelectric effect apparatus. What is the cutoff frequency for the emitter |

## What current flows through the bulbAn inflated rubber balloon is rubbed with a wool cloth till an excess of a billion electrons is on the balloon. What is the magnitude of the charge on the balloon. |

## Ball is made to touch the inside of the canA wooden raft has a mass of 76 kg. When empty it floats in water (density 1000 kg/m3) with 51 percent of its volume submerged. What mass of sand can be put on the raft without it sinking. |

## How does a walker typically go after n stepsLevy flights- consider a random walk of N steps in one-dimension. suppose that the steps are completely uncorrelated, and that the distribution of step size a is given by phi(a)= k*1/(1+abs(a)^alpha). |

## Derive an expression that gives the speed v of the waveA uniform rope of mass m and length L is hanging straight down from the ceiling. A small-amplitude transverse wave is sent up the rope from the bottom end. Derive an expression that gives the speed v of the wave on the rope in terms of the distanc.. |

## What frequency will the force make the object vibrateA person driving her car at 49 km/h approaches an intersection just as the traffic light turns yellow. She knows that the yellow light lasts only 2.0 s before turning to red, and she is 30 m away from the near side of the intersection . |

## Why to avoid the weight of the batAvoid the weight of the bat, since it is so much less than the force of the bat. Select the direction of the incoming ball as positive direction. |

## What is the mass m of the fishA fish hanging from the bottom of the spring oscillates vertically at a frequency of 2.55Hz, Ignoring the mass of the spring, what is the mass m of the fish |

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