Suppose that the central diffraction envelope of a double-slit diffraction pattern contains 11 bright fringes and the first diffraction minima eliminate (are coincident with) bright fringes. How many bright fringes lie between the first and second minima of the diffraction envelope?

How far is the object from the mirror : The side-view mirror of an automobile has a radius of curvature of 15.0 cm. The mirror produces a virtual image one-third the size of the object. How far is the object from the mirror? |

What is recoil speed of the gold nucleus problem : A proton is shot at 4 × 107 m/s toward a gold atom, with a mass 197 times that of the proton and deflects it straight back with 90% of its initial speed. What is the recoil speed of the gold nucleus? |

Which will remain unchanged in a collision : Compare the motion of two objects before a collision with their motion after the collision. You should be able to find a quantity, which will remain unchanged in a collision. Be sure to justify your reasoning. |

Calculate final velocity just before bullet-block system : A small 2 g bullet moving at V0= 2000 m/s, inbeds itself in a 1kg block at the top of an inclined plane with an angle of θ= 450. The combined system then becomes a projectile, landing on the ground 10 m below the top of the incline. Calculate the f.. |

Diffraction envelope of double-slit diffraction pattern : Suppose that the central diffraction envelope of a double-slit diffraction pattern contains 11 bright fringes and the first diffraction minima eliminate (are coincident with) bright fringes. How many bright fringes lie between the first and second.. |

Phase difference between the huygens wavelets : A 0.10-mm-wide slit is illuminated by light of wavelength 589 nm. Consider a point P on a viewing screen on which the diffraction pattern of the slit is viewed; the point is at 30° from the central axis of the slit. |

Horizontal surface on which coefficient of kinetic friction : A sled slides along a horizontal surface on which the coefficient of kinetic friction is 0.28. Its velocity at point A is 8.0 m/s and at point B is 4.8 m/s. Use the impulse-momentum theorem to find how long the sled takes to travel from A to B. |

What force is keeping the car in the circle : A car is moving on a flat horizontal circular track of radius 120 m. The speed of the car is constant, 15m/s. The mass of the car is 1200 kg. Ignore air resistance. What force is keeping the car in the circle? |

What is the speed of the five-car train : Three identical train cars, coupled together, are rolling east at 1.6 m/s . A fourth car traveling east at 4.4 m/s catches up with the three and couples to make a four-car train. A moment later, the train cars hit a fifth car that was at rest on the .. |

## What is the least force the nurse needs to apply to syringeA 1.6 mL syringe has an inner diameter of 5.8 mm, a needle inner diameter of 0.25 mm, and a plunger pad diameter (where you place your finger) of 1.0 cm. A nurse uses the syringe to inject medicine into a patient whose blood pressure is 140/100. |

## What is wires linear charge densityA major league pitcher can throw a baseball in excess of 42.9 m/s. If a ball is thrown horizontally at this speed, how much will it drop by time it reaches the catcher who is 18 m away from the point of release. |

## Determine the time that was recorded on earthDonovan Bailey set a world record for the 100-m dash on July 27, 1996. find the time that was recorded on Earth |

## As a result of the collision the block with the bullet ina 0.010 kg bullet is fired straight up at a falling wooden block that has a mass of 5.0 kg. the bullet has a speed of |

## Obtain what is the focal length of the mirrorShaving/make-up mirrors typically have one flat and one concave (magnifying) surface. What is the focal length of the mirror |

## Determine the maximum height on the left inclineAn object, of mass m = 3 kg, is released from a height h = 5 m of the top of a rough 45 incline, Determine the maximum height on the left incline that the object will reach before sliding back again to the right |

## What is the buoyancy force felt by the lead ballYou have a beach ball which has a radius of 25 cm and a mass of 0.5 kg. You have a lead ball which has the same radius but has a mass of 120 kg. what is the buoyancy force felt by the lead ball |

## What percentage of the first cation remains in solutionSuppose you have a solution that contains 0.0490 M Ca2 and 0.0940 M Ag, When the second cation just starts to precipitate, what percentage of the first cation remains in solution |

## What is the sound intensity levelWhat velocity would a proton need to circle Earth 1400 km above the magnetic equator, where Earth's magnetic field is directed horizontally north and has a magnitude of 4 x10-8 T . |

## Find the mass of the manThe coefficients of static and kinetic frictions for plastic on wood are 0.50 and 0.40, respectively. How much horizontal force would you require to apply to a 3.0 N plastic calculator to start it moving from rest. |

## A car makes a trip due north for three-fourths of the timea car makes a trip due north for three-fourths of the time and due south one-fourth of the time. the average northward |

## Determine the possible algebraic signsAn unstrained horizontal spring has a length of 0.34 m and a spring constant of 290 N/m. Two small charged objects are attached to this spring, one at each end. The charges on the objects have equal magnitudes. |

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