When connected in series to a 110-V line, two resistors use one-fourth the power that is used when they are connected in parallel. If one resistor is 2.0k ohms, what is the resistance of the other?

What is the base-emitter voltage of the latter transistor : In a particular technology, a small BJT operating at vBE = 28VT conducts a collector current of 100 µA. What is the corresponding saturation current. For a transistor in the same technology but with an emitter junction that is 32 times larger. |

Explain pair of amino acid substitutions : You are performing site-directed mutagenesis to test predictions about which residues are essential for a protein's function. Which of each pair of amino acid substitutions listed below would you expect to disrupt protein function the most |

Estrimate the acceleration of the system : A mass of 3kg, is sitting on a 34Â° incline and is connected by a massless string over a pulley in the shape of a hollow cylinder, estimate the acceleration of the system |

What is the corresponding amplitude of vsig and v0 : An Emitter follower with a BJT biased at Ic = 1mA and having β = 100 is connected between a source with Rsig = 20kg and a load RL = 1kg. a) find Rin, vb/vsig, and v0/vsig. b) If the signal amplitude across the base-emitter junction is to be limitd t.. |

What is the resistance of the other : When connected in series to a 110-V line, two resistors use one-fourth the power that is used when they are connected in parallel. what is the resistance of the other |

State the net ionic equation for any single reaction : A piece of solid Ni metal is put into an aqueous solution of HNO3. Write the net ionic equation for any single-replacement redox reaction. Include states and charges |

What is the rotation speed of the disks in rpm : A given application is reading and writing 32KByte files on a disk that has a data transfer rate of 150MByte/s. Measurements have shown that this disk incurs an average seek time of 6.7 msec and needs an average of 11.08 msec to complete a read or.. |

Find the magnitude and direction of the force : Find the magnitude and direction of the force the cable exerts on the pin for the pulleys |

Calculate the output voltage of the generator : A device draws 6.000 kW of power when connected to the 12.0-V output of a step down transformer. Calculate the output voltage of the generator |

## At what angle is the rope heldA force of 78gm acts at the point (2, 3, 5) the direction cosines of its line of action being as 2:2:1 find the magnitude of its moment about the joining the origin to the point (2, 3, 4). |

## Calculate the magnitude of the velocityA man stands on the roof of a building of height 16.8m and throws a rock with a velocity of magnitude 31.8m/s, Calculate the magnitude of the velocity of the rock just before it strikes the ground |

## What is the electric potential energy u of the systemThree equal point charges, each with charge 1.45?C, are placed at the vertices of an equilateral triangle whose sides are of length 0.650m |

## Calculate the force and the total work required in each casecompute the force and the total work required in each case. Find the tension in each of the cables. |

## Calculate the average de broglie wavelength of helium atomConsider a balloon filled with helium gas at room temperature (T = 289 K) and atmospheric pressure. Calculate the average de Broglie wavelength of the helium atoms |

## Calculate the angular velocity of the turntableSuppose a 65 kg person stands at the edge of a 6.5 m diameter merry-go-round turntable that is mounted on frictionless bearings and has a moment of inertia of 1850 kg m2. Calculate the angular velocity of the turntable |

## What is the magnitude of the electrostatic forceWhat is the magnitude of the electrostatic force the molecule exerts on it? |

## How far would a point on the edge of the wheelA wheel 65 cm in diameter accelerates uniformly from 230 rpm to 355 rpm in 7s. How far will a point on the edge of the wheel have traveled in this time. |

## What is the wavelength of the electromagnetic wavesWhat is the wavelength of the electromagnetic waves used for cell phone communications in the 900-MHz band? |

## What is the ratio of the man''s kinetic energyWhen people sleep, their metabolic rate is about 2.6 10-4 C/(s • kg). How many Calories does an 83 kg person metabolize though getting a good night's sleep of 9.0 hours. |

## What is the impulse delivered to the ball by the floor250 kg ball is dropped to the floor from a height of 1.0 m and upon rebounding, reaches a height of .60 m. What is the impulse delivered to the ball by the floor? |

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