Q1. A 32 percent efficient electric power plant produces 900 MJ of electric energy per second and discharges waste heat into 200C ocean water. Suppose the waste heat could be used to heat homes during the winter instead of being discharged into the ocean. A typical American house requires an average 20 kW for heat in g. How numerous homes could be heated with the waste heat of this one power plant?

Q2. A curve of radius 56 m is banked so that a car of mass 1.8 Mg travelling with uniform speed 51 km/hr can round the curve without relying on friction to keep it from slipping on the surface. At what angle is the curve banked? The acceleration due to gravity is 9.8 m/s2.

Answer in units of.

Q3. A 25-cm-long wire with a linear density of 25 passes across the open end of an 83-cm-long open-closed tube of air. If the wire that is fixed at both ends vibrates at its fundamental frequency, sound wave it generates excites the second vibration mode of the tube of air.

What is mass of the car : If the velocity of the car is increased to 50 km/ hour, what is its kinetic energy. if the velocity is improved to 75 km/ hour, what is its kinetic energy. |

What is the change in length of the rope : What is the change in length of the rope whilst the skier has the acceleration whose magnitude is 0.65 m/s2. |

Find out the change in mechanical energy due to friction : Find out the speed of a 56.7 kg thrill seeker at the bottom of the slide, assume no friction. If the thrill seeker has a speed of 24.1 m/s at the bottom, find out the change in mechanical energy due to friction. |

What estimated distance will the car travel : A car dealer claims that his product will accelerate at a constant rate from rest to a speed of 200 km/hr in 8s. What estimated distance will the car travel. |

How numerous homes could be heated with the waste heat : At what angle is the curve banked? The acceleration due to gravity is 9.8 m/s2. |

What is the force constant of the spring : While a force of 6.0 N is applied, pulling the spring to the right, the elongation of the spring is 0.030m from its equilibrium position. What is the force constant of the spring |

What is rotational kinetic energy of the platform : If the magnetic field strength is 0.845 T, what is magnitude and direction of the magnetic force on the wire between the poles |

What is suzies average acceleration : She notices a group of workers down the walkway who have suddenly blocked her path, and she makes a quick stop in 1.8 seconds. What is Suzies average acceleration |

What is an electric field between the plates : What is an electric field between the plates? Towards which plate is it directed. |

## Write three methods of increasing the volume of a balloonWrite three methods of increasing the volume of a balloon |

## What is the dipole contribution to the scalar potentialCharge is distributed with constant volume density D throughout the rectangular box with length a, width b and height c. |

## What are the total displacement and angle of displacementWhat are the total displacement and angle of displacement |

## What is horizontal distance from press box to second baseWhat is horizontal distance from press box to second base |

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd