What is the minimum thickness of coating which should be placed on a lens in order to minimize reflection of 646 nm light? The index of refraction of the coating material is 1.32 and the index of the glass is 1.57.

Compare the probabilities for an oscillating particle : Compare the probabilities for an oscillating particle in its ground state to be found in a small interval of width dx at the center of the well and at the classical turning points. |

Friction between cannon and the ground : A cannon with a mass of 115 kg shoots a cannonball with a mass of 8 kg. If the speed of the cannon ball as it leaves the cannon is 185 m/s,what is the speed of the cannon at that time??(assume cannon is initially at rest,not fastened down in any way,.. |

What are the x n y component of their final velocity : An 80 kg hockey player is gliding down the ice with a velocity of 7.5 m/s in +ve x directon.he is hit by a defensive player of mass 105 kg ans an initial velocity of 4.5m/s in -ve y direction.if the players experience a completely inelastic collision.. |

Diffraction grating-what angle will second order peak occur : A diffraction grating with 300 lines per mm is used in an experiment to study the visible spectrum of a gas discharge tube. At what angle from the beam axis will the first order peak occur if the tube emits light with wavelength of 500.7 nm? At what .. |

What is the minimum thickness of coating : What is the minimum thickness of coating which should be placed on a lens in order to minimize reflection of 646 nm light? The index of refraction of the coating material is 1.32 and the index of the glass is 1.57. |

Calculate the distance between the two slits : Two narrow slits are illuminated by a laser with a wavelength of 537 nm. The interference pattern on a screen located x = 5.50 m away shows that the second-order bright fringe is located y = 6.00 cm away from the central bright fringe. Calculate the .. |

How far does the putty-block system compress the spring : A 0.413 kg block is attached to a horizontal spring that is at its equilibrium length, and whose force constant is 24.6 N/m. The block rests on a frictionless surface. A 0.0500 kg wad of putty is thrown horizontally at the block, hitting it with an i.. |

Find the final speed of both vehicles after the collision : A 667 kg car stopped at an intersection is rear-ended by a 1600 kg truck moving with a speed of 13.5 m/s. If the car was in neutral and its brakes were off, so that the collision is approximately elastic, find the final speed of both vehicles after t.. |

Find the x- and y-coordinates of the center of gravity : Find the x- and y-coordinates of the center of gravity of a 4.00 ft by 8.00 ft uniform sheet of plywood with the upper right quadrant removed as shown in the figure below. The dimensions of the cutout are a = 4.10 ft and b = 2.10 ft. HINTS: Think .. |

## What is the maximum possible value for dA tourist being chased by an angry bear is running in a straight line toward his car at a speed of 5.73 m/s, What is the maximum possible value for d |

## What is the speed of the blockA 240g block on a 60cm-long string swings in a circle on a horizontal, frictionless table at 70rpm. |

## Compute the resistance ratiomeasured between their endsTwo conductors are made of the same material and have the same length. Conductor A is a solid wire of diameter 1.5 mm. What is the resistance ratio RA/RB, measured between their ends |

## Find coefficient of kineticfriction between inclineand blockA block with mass m1 = 8.6 kg is on an incline with an angle ? = 31.0° with respect to the horizontal. What is the coefficient of kinetic friction between the incline and the block |

## Explain the principle and construction of a hydrometerExplain the principle and construction of a hydrometer. What is the purpose of the common measurements of the specific gravities of an automobile's radiator coolant and battery electrolyte |

## Find the cases vertical accelerationA clarinetist, setting out for a performance, grabs his 3.37-kg clarinet case (including the clarinet) from the top of the piano, Find the case's vertical acceleration |

## Find the speed of block has as it passes through equilibriumA block of mass m = 2.00 kg is attached to a spring of force constant k = 4.65 102 N/m that lies on a horizontal frictionless surface, Find the speed the block has as it passes through equilibrium |

## What is the magnitude of the average forceWhat is the magnitude of the average force required to stop 1200kg car in 9.0 if the car is traveling at 65km/h |

## Find the incident angle that gives a transmitted angleA beam of light travels through the air and is incident on a piece of glass with an index of refraction of 1.70 |

## Find the relativistic momentum of the spacecraftA spacecraft has a nonrelativistic (or classical) momentum whose magnitude is 1.5 × 1013 kg·m/s. Find the relativistic momentum of the spacecraft |

## How much heat is absorbed or liberatedOne gram-mole of an ideal gas initially occupies V1 = 5.0 L at P1 = 117 kPa, and then expands to V2 = 10.0 L at constant pressure. How much heat is absorbed (+) or liberated (-) |

## How fast is the astronaut movingA 62-kg astronaut is in space, far from any objects that would exert a significant gravitational force on him. How fast is the astronaut moving after he throws the mallet |

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