1) A bolt of lightning can carry a current of 250,000 A. How many times stronger is the magnetic field produced by a lightning bolt at a perpendicular distance of 10 m from the lighting, as a multiple of the Earth's magnetic field of ~57.5 ?T.

2) Calculate the magnetic force per meter between two such lightning bolts separated by 10 meters. (This is mainly to give a feeling for the strength of the magnetic field).

Calculate the potential difference between the two plates : Two plates of area 30.0 cm2 are separated by a distance of 0.0150 cm. calculate the potential difference (voltage) between the two plates |

What frequency components will be obtained at the output : Given a sawtooth signal with fundamental frequency = 20 KHz as the input signal going into an ideal Highpass Filter with cutoff frequency fc = 60 KHz, what frequency components will be obtained at the output |

Determine transfer function of 4th order lowpass filter : determine the transfer function of a 4th order lowpass butterworth filter with a 3-dB cutoff frequency of 3.4 kHz and passband gain=1. Design the circuit using MFB topology. Design two sections with an order of 2. |

Explain the difference between given wavelengths : Visible light passes through a diffraction grating that has 900 slits per centimeter, What is the difference between these wavelengths |

Calculate the magnetic force per meter : Calculate the magnetic force per meter between two such lightning bolts separated by 10 meters. (This is mainly to give a feeling for the strength of the magnetic field) |

How has technology changed how candidates apply for jobs : Think about how companies used to advertise for jobs. Think about how people used to apply for jobs. Recruiting for employees was often a laborious task.How has HR technology impacted how we recruit for employees? |

Find noise power and noise voltage applied to receiver input : A 300 W resistor is connected across the 300 Wantenna input of a television receiver. The bandwidth of the receiver is 6 MHz, and the resistor is at room temperature (20oC). Find the noise power and noise voltage applied to the receiver input. |

What is the f-number for the human eye in bright light : The focal length of the human eye is approximately 1.7 cm. What is the f-number for the human eye in bright light, when the pupil diameter is 3.0mm |

Formulate the problem as a linear program : Formulate the problem as a linear program (i.e. define the variables, and write down the objective function and all constraints in algebraic form). |

## Calculate the strength of the electric fieldA hollow, conducting sphere with an outer radius of 0.240m and an inner radius of 0.210m has a uniform surface charge density of +6.84*10-6C/m2, Calculate the strength of the electric field just outside the sphere |

## Find the final temperature of the waterSuppose 0.0450kg of steam (at 100.°C) is added to 0.450kg of water (initially at 20.5°C), Find the final temperature of the water after equilibrium is reached |

## Interpretation of distance-time graphInterpretation of Distance-time Graph 1. Which car is ahead and by how much distance after 3 hours? 2. Which car stops moving after 3 hours? |

## At what time does the ball reach its high pointA ball is thrown with an initial velocity of 14m/s. using the approximate value g=10 m/s^2, at what time does the ball reach its high point? |

## What are vertical and horizontal components of the ballWhat are vertical and horizontal components of the ball's momentum immediately after striking the crossbar. what is an average acceleration of the ball during this time interval. |

## Explain how much acceleration will the other three produceIf a four-engine jet accelerates down the runway at 2 m/s2 and one of the jet engines fails, explain how much acceleration will the other three produce? |

## Find out the effective spring constant of moleculeWhen Babe Ruth hit a homer over the 7.5 -high right-field fence 98 from home plate, roughly what was the minimum speed of the ball when it left the bat? Assume the ball was hit 1.4 above the ground and its path initially made a 37 angle with the grou.. |

## What is the dielectric constant k of the dielectricA horse canters away from its trainer in a straight line, moving 130 m away in 10.0 s. It then turns abruptly and gallops halfway back in 5.3 s. find its average velocity for the entire trip, using "away from the trainer" as the positive direction.. |

## Calculate the magnitude of the current density in the wireCalculate the magnitude of the current density in the wire. Find out the work done by the hockey player on the puck. What is the change in kinetic energy of the puck. |

## What is the angle between the two colors in waterA parallel beam of light containing red (660 nm) and violet (410 nm) wavelengths goes from diamond to water, striking the surface between them at a 19° incident angle |

## Find the resistance of a wireGold is the most ductile of all metals. For example, one gram of gold can be drawn into a wire 2.25 km long. What is the resistance of such a wire at 20°C |

## What is the change in internal energy for processAn engine goes through the following cycle with 2.20 sample of a diatomic gas. I. an isothermas expansion from point a to point b. II. a constant pressure compression from point b to point c. III. |

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