Q. Sources A and B emit long-range radio waves of wavelength 530 m, with the phase of the emission from A ahead of that from source B by 90°. The distance rA from A to a detector is greater than the corresponding distance rB from B by 110 m. What is the magnitude of the phase difference at the detector?

Q. A 20kg child is on a swing that hangs from 3m long chains, what is her speed initially at the bottom of the arc if she swings out at a 45 degree angle before reversing action?

Find how much mass m of ice should be added : The electric field has been measured to be horizontal and to the right everywhere on the closed box. All over the left side of the box E1 = 120 V/m, and all over the right, slanting, side of the box E2 = 250 V/m. On the top the average field is E3.. |

Inefficiency in financial institutions operations : Discuss and explain how the credit crisis causes this to occur. Advise at least 2 proactive steps that financial institutions may take to provide similar influence without credit crisis. |

During an investigation of possible violations of securities : Do you believe the provisions need to be strengthened to include forfeiture or reimbursement of any bonus or incentive-based compensation? |

Determining line cost for three points : Points T1, T2 ,and T3 are 25 miles apart, and points C1 , C2, and C3 also are 25 miles apart. If telephone lines cost $1 per mile, determine the line cost for three? |

What is the speed initially at the bottom : Sources A and B emit long-range radio waves of wavelength 530 m, with phase of the emission from A ahead of that from source B by 90°. The distance rA from A to a detector is greater than corresponding distance rB from B by 110 m. What is the magni.. |

Define the coefficient of friction : A 240g ball and a 130g ball are connected by a 32 cm-long massless, rigid rod. The structure rotates about its center of mass at 150rpm. |

Java program for real estate agent : Write down java program for real estate agent. Program must perform the following tasks: ask users for average house price for the each of past 5 years for single family residence of 1500 square feet. |

Elucidate why the general level of wages is higher : Elucidate why the general level of wages is higher in the United States and other industrially advanced countries. What is the single most important factor underlying the long-run increase in average real-wage rates in the United States. |

Calculate the total cost of a loan : Suppose you are planning buying a used piano. $600 is the cash price of the piano. The firm selling the piano is willing to sell it to you for $50 down plus twelve monthly payments of $50. |

## Provide artificial gravity of g for the occupantsA railroad car of mass 4.0 * 10^4 kg moving at 5.0 m/s collides and couples with two coupled railroad cars, each of the same mass as the single car and moving in the same direction at 1.50 m/s. |

## By how much does the wire stretchA golf ball strikes a hard, smooth floor at an angle of θ = 31.6°, rebounds at the same angle. The mass of the ball is 0.043 kg, and its speed is 45m/s just before and after striking the floor. What is the magnitude of impulse applied to the golf bal.. |

## What force is needed to produce a net force of zeroAgree on the mass of the earth knowing that the mean radius of the moon's orbit about the earth is 248,910 mi and that the moon requires 28.32 days to complete one full revolution about earth. |

## Water in an electric teakettle is boilingA golf ball is struck with a five iron on level ground. It lands 92.7 away 4.10 later. What were (a) direction and (b) magnitude of the initial velocity. |

## A girl on a sled coasts down a hillA 200, 47.0 cm-diameter turntables rotate on frictionless bearings at 70. A 24.0 block sits at the center of the turntable. A compressed spring shoots the block radically outward along the frictionless groove in the surface of turntable. |

## How many visible-light photons are emittedIf the average frequency emitted by a 200,-, rm W light bulb is 5.00 times 10^ {14}, {rm Hz}, and 10.0 percent of the input power is emitted as visible light, about how many visible-light photons are emitted per second. |

## What will be its radius of curvatureA doubly charged helium atom whose mass is 6.6 10 to 27 kg is accelerated by a voltage of 2200 V. What will be its radius of curvature if it moves in the plane perpendicular to a uniform 0.308 T field? |

## What is the direction of the displacementAn explorer in dense jungles of equatorial Africa leaves his hut. He takes 41 steps at an angle 45 north of east, then 81 steps at an angle 60 north of west, then 51 steps due south. Suppose his steps all have equal length. Save him from becoming .. |

## Find the magnitude of the torque on the pole due to gravityThe quantity of charge q (in coulombs) that has passed through a surface of area 2.10 cm2 varies with time according to equation q = 7t3 + 5t + 6, where t is in seconds. |

## Find out the work completed by the electric fieldA man pushes on a piano with mass 180 {rm kg} so that it slides at constant velocity down a ramp that is inclined at 20.0^circ above horizontal floor. Overlook any friction acting on the piano. |

## What is the angle between tree and support wireA bolt is dropped from a bridge under construction, falling 92m to the valley below the bridge. (a) How much time does it take to pass through the last 26 percent of its fall? What is its speed (b) when it begins that last 26 percent of its fall a.. |

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