A double slit is opposite the center of a 1.7-m wide screen 1.9 m from the slits. The slit separation is 24 µm and the width of each slit is 7.2 µm. How many fringes are visible on the screen if the slit is illuminated by 648-nm light?

Determine the electron current in the wire : When a current flows in an aluminum wire of diameter 4.97mm, the drift speed of the conduction electrons is 1.49x10^-4 m/s. What is the electron current in the wire |

Determine the frequency of these waves : Microwaves used in laboratory experiments often have a wavelength of about 1 cm. What is the frequency of these waves |

Find the longest possible wavelength for the traveling waves : A string with a length of 0.7 m is fixed at both ends. What is the longest possible wavelength for the traveling waves that can interfere to form a standing wave on this string |

Explain atom of similar electronic geometry : Which of the following clusters of orbitals would form the shape shown here (Part B 1 figure) either through the formation of a single molecule or by bonding to another atom of similar electronic geometry and results in an arrangement of orbitals .. |

Calculate how many fringes are visible on the screen : A double slit is opposite the center of a 1.7-m wide screen 1.9 m from the slits. How many fringes are visible on the screen if the slit is illuminated by 648-nm light |

Explain the top of the column in gc but not hplc : Why is the injector/detector temperature set at 180 C while the column temperature is only at 90 C and why is it possible to inject the sample directly with a syringe onto the top of the column in GC but not HPLC |

Illustrate the operation of count-sort on an array : Design an algorithm (pseudo code) that returns the SECOND largest key value of a Black-Red Tree. In addition, you can use diagrams to demonstrate that your algorithm make sense. |

Find the frequency associated with this longest wavelength : A string with a length of 0.7 m is fixed at both ends. find the frequency associated with this longest wavelength |

Explain what is the molecular geometry of a molecule : What is the molecular geometry of a molecule with 4 outer atoms and 2 lone pairs on the central atom |

## How far from the base of the wall dos the cannon ball travelA cannon fires up at an angle of 30 degrees above the horzontal with a muzzle velocity of 40 m/s. How far from the base of the wall dos the cannon ball travel |

## What is the kinetic energy as it slides on the upper surfaceA 10 kg crate (begins 3m off the ground) slides along a smooth horizontal frictionless surface at a constant speed of 4 m/s. What is the kinetic energy as it slides on the upper surface |

## Determine the harmonic numberKnowing that these two tones are two harmonics apart, find the smallest length the tunnel could have. Also determine the harmonic number for these two tones |

## Find out fraction of incident unpolarized light intensityA 4 kg mass is hung from a string which is wrapped around a cylindrical pulley (a cylindrical shell). If the mass accelerates downward at 4.90 m/s2, what is the mass of pulley. |

## Find acceleration of the hanging massA 330 g air track on a horizontal air trek is attached to a string that goes over a pulley with a moment of inertia of 5.00x10^-6 kgxm^2 and a radius of 1.35 cm. Find acceleration ofthe hanging mass |

## What is the pressure difference between inlet and outletThe intake in the figure has cross-sectional area of 0.79 m2 and water flow at 0.44 m/s. What is the pressure difference between inlet and outlet |

## How to establish the mechanical energy of the systemWhat is the minimum coefficient of friction between tires and road that will allow cars to take turn without sliding off the road. |

## Find the speed of the child at the surface of the poolA child whose weight is 284 N swings out over s pool of water usinga rope attached to the branch of a tree at the edge of the pool. Find the speed of the child at the surface of the pool |

## Find the magnitude of the larger of the two resistancesWhen a 50.0-V emf device is placed across two resistors in series, a current of 12.0 A is flowing in each of the resistors. What is the magnitude of the larger of the two resistances |

## What was the intioal momentum of the systemAn astroid of mass 2.1 x 10^15 kg splits apart. Asume the original astroid was at rest, what is the final velocity of the larger piece after the break, what was the intioal momentum of the system |

## What will be the distance of the two runners from flagpoleRunner A is initially 8.6 km west of a flagpole and is running with a constant velocity of 5.2 km/h due east. What will be the distance of the two runners from the flagpole |

## Find the magnitude of the object''s relativistic momentumAn object has a total energy of 4.20 1015 J and a kinetic energy of 2.40 1015 J. What is the magnitude of the object's relativistic momentum |

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