A pendulum bob of mass m is attached to a massless string of length L. If the bob is released from rest at a horizontal position, what is the speed of the bob when the string makes an angle theta with respect to the vertical direction? What is the tension in the string? What is the tangential acceleration of the bob at the angle theta?

Calculate the current in the resistor : The voltages at opposite ends of a 470Ω, ±5% resistor are measured as V1 = 12V and V2 = 5V. The measuring accuracy are ±0.5V for V1 and ±2% for V2. Calculate the current in the resistor and specify its accuracy. |

Find the net torque on the stone about the center of circle : A 6-kg stone is tied to a 0.79-m long string and swung around a circle at a constant angular velocity of 19 rad/s |

Explain what is the ratio of enantiomers of 2-octanol : What is the ratio of enantiomers of 2-octanol in the product mixture? 55% (S) and 45% (R). However, I am not sure how to draw the structure of the major enantiomer produced in this reaction. Indicate the configuration of the stereogenic center usi.. |

The rms value of the line-to-line voltage : Consider a 3 phase 25 kVA, 440 V, 60 Hz ac generator operating at full load (that is, delivering its rated kVA) under balanced steady state conditions. The ac generator has 3 stator windings that output balanced 3 phase voltages. It is usual to.. |

What is the tangential acceleration of the bob : A pendulum bob of mass m is attached to a massless string of length L. If the bob is released from rest at a horizontal position, What is the tangential acceleration of the bob |

Evaluate and analyse leadership : Critically evaluate and analyse leadership you have witnessed in specific situations and this means comparing concrete examples (what was said and what was done) to relevant theories and models, concepts and principles from the topics and textbook |

Evaluate the energy required to heat : Calculate the energy required to heat 1.30 kg of ethane gas (C2H6) from 27.0°C to 78.0°C first under conditions of constant volume and then at a constant pressure of 2.00 atm. |

Use steganography to effectively hide one file : Steganography Lab. Create a file on your desktop using Notepad that will be hidden in the image. |

Why risk averse consumers pay premium for insurance : Why risk averse consumers pay premium for insurance to convert an uncertain outcome to a certain one? |

## Find out the moment of inertia of the wheelA block of mass = 2.90 is attached to a string that is wrapped around the circumference of a wheel of radius = 7.20. The wheel rotates freely about its axis and the string wraps around its circumference without slipping. At first the wheel rotates.. |

## Why do magnetic field lines contract longitudinallyWhy do magnetic field lines contract longitudinally and exert a lateral pressure? |

## Find the third dark fringe regarding central bright fringeYou have just built a house out in the country and it comes to your attention that you need to install a lightning rod. Being naturally curious you ask a hardware salesperson how lightning rods work and they accurately tell you. |

## How much time is lost in a yearThe pendulum in a grandfather clock is made of brass and keeps perfect time at 20?C. How much time is lost in a year |

## Find the mechanical energy of a block- spring systemFind the mechanical energy of a block- spring system having a spring constant of 1.3 N/cm and an oscillation amplitude of 2.4 cm. |

## Find the area under the standard normal curveGiven a binomial distribution with n = 20 and p = 0.76, would the normal distribution provide a reasonable approximation? Why or why not and find the area under the standard normal curve for the following: |

## How much time passes until the eagle sees the miceThe pupil of an eagle's eye has a diameter of 6.0 mm. Two field mice are separated by 0.010 m. How much time passes until the eagle sees the mice as separate objects |

## Find the emf induced across its wingConsider a Boeing 777-200 airplane of wing span 60.93 m cruising horizontally at Mach 0.785, Find the emf induced across its wing |

## Find the velocity of the air in the small-diameter tubeAir passes through a large-diameter glass tube, then through a small-diameter tube, and finally through a large-diameter tube again, Find the velocity of the air in the small-diameter tube |

## What is a typical neutron star densityA neutron star is the remnant left after certain supernovae (explosions of giant stars). What is a typical neutron star density |

## What is the cheetahs kinetic energyThrough a hard sneeze, your eyes might shut for 0.70s. If you are driving a car at 100 km/h during such a sneeze, how far does the car move for the duration of that time. |

## Estimate the density of the unknown liquidThe figure below shows a mercury barometer. Consider two barometers, one using mercury and another using an unknown liquid. estimate the density of the unknown liquid |

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