A drilling machine is driven by a single-phase induction motor connected to a 110-V rms supply. Suppose that the machining operation requires 1 kW, that the tool machine ihas 90 percent efficiency, and that the supply current is 14 A rms with a power factor of 0.8. Find the AC machine efficiency.

Explain what is the energy of exactly one photon : Microwave ovens emit microwave energy with a wavelength of 12.6 cm. What is the energy of exactly one photon of this microwave radiation |

Calculate the cash outflow at time zero : Campbell's marginal tax rate is 30 percent and it cost of capital is 10 percent. |

Find maximum speed of the glider : An air-track glider attached to a spring oscillates between the 12.0cm mark and the 61.0cm mark on the track. find maximum speed of the glider |

Define to resolve an object in an electron microscope : To resolve an object in an electron microscope, the wavelength of the electrons must be close to the diameter of the object. What kinetic energy must the electrons have in order to resolve a protein molecule that is 7.00 nm in diameter? Take the m.. |

Determine what is the ac machine efficiency : Suppose that the machining operation requires 1 kW, that the tool machine ihas 90 percent efficiency, and that the supply current is 14 A rms with a power factor of 0.8. Find the AC machine efficiency. |

Explain one type of electromagnetic radiation has frequency : one type of electromagnetic radiation has a frequency of 107.1 MHz another type has a wavelength of 2.12*10^-10m,and another type ofelectromagnetic radiation has photons with energy equal to 3.97*10^-19J/photon. identify each type of electromagnet.. |

Advocate for the truth of each of the premises : Develop an argument is to defend it, then criticize it, then try to rebut the criticism against it, then assess whether the rebuttal effectively handles the criticism. |

What is the nuclear power output in megawatts : The electrical power output of a large nuclear reactor facility is 890 MW. It has a 34.0% efficiency in converting nuclear power to electrical. What is the nuclear power output in megawatts |

Find the power dissipated by the circuit nd the power factor : A current of 4 A rms flows when a neon sign is supplied by a 110-V rms power system. The current lags the voltage by 60°. Find the power dissipated by the circuit and the power factor. |

## How much force will be necessary to get to start slidingAn aluminum casting that has a mass of 10 kg sits on a steel surface. How much force will be necessary to get it to start sliding. The static coefficient of friction (mu) for aluminum on steel is 0.61. |

## Find the average power delivered the resistorwhen an AC source is connected accross a 12.0 resistor,the rms current in the resistor is 8.00 A find (a) the rms voltage accross the resistor,(b) the peak voltage of the source , (c) the maximum current in the resistor |

## Find what is the step response of the filterGiven the digital filter transfer function H(z)=1-z^-1 , what is the step response (that is, the input to the filter is unit step sequence u(n) ) of the filter A. y(n)= delta(n)+delta(n+1) B. y(n)=u(n-1) C. y(n)=u(n)-u(n-1) D. y(n)=u(n-2) |

## Design a op-amp summer to produce the output voltageDesign a op-amp summer to produce the output voltage Vo=2v11-10v12+3v13-v14. Assume the largest resistor value is 500k ohms, and the input impedance seen by each source is the largest value possible. |

## How much does gain change when a load resistance givenA common-source FET amplifier has an RD = 1.0 k ohms. How much does the gain change when a load resistance of 1.0 k ohms is capacitively coupled to the drain |

## Calculate the impedance to neutral of the lineCalculate the impedance to neutral of this line. Calculate the line charging current in A/phase if the line is 100 km long and is operated at line-line voltage of 230 kV (8.565 pF/m, j3.23 micro-Siemens/km, 42.9 A/phase) |

## Find max thermoelectric generation efficiency for any tempA newly proposed thermoelectric generation material is the skutterudite family, such as FeAs3 or CoAs3. Assuming this new material has a Seebeck coefficient S = 35 V/K (microvolts per degree Kelvin), the electronic conductivity =1x104 (Ohm-cm)-1 |

## How many expriments will be conducted on a given gasin investigating the ideal gas law experiments are to be run at four different pressure and three different temperatures . A) How many exprimental conditions are to be studies B) If each experment is replicated 5 times how many expriments will be con.. |

## What is probability that customer will only be able internetAn internet access provider (IAP) owns two servers. Each server has a 50% chance of being "down" independently of the other. Fortunately, only one server is necessary to allow the IAP to provide service to its customers |

## Determine the time constants for transient rise and decayFor the Circuit shown below, V1=5V, R1= 20 kiloOhm, R2= 100kiloOhm, and C= 0.1 microF. Assume the switch in the circuit below has been open for a long time. At t=0, the switch is closed and at t=5 sec the switch is re-opened. |

## How many machines to host databases do provide file sharingA cloud company has 20 computers total. Out of the 20 computers, 9 run web servers and 12 host databases. Furthermore, 8 machines offer file sharing. Note that a particular machine can offer multiple services. |

## Calculate inductance of sensor for air gapcalculate inductance of sensor for air gap of 1mm and 3mm? |

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