A steel section of the Alaskan pipeline had a length of 67.6 m and a temperature of 16.1?C when it was installed. What is its change in length when the temperature drops to a frigid -40.9?C?

Solar component of electromagnetic radiation : At one location on the Earth, the rms value of the magnetic field caused by solar radiation is 1.85 µT. (a) Calculate the rms electric field due to solar radiation. V/m (b) Calculate the average energy density of the solar component of electromagn.. |

What is the girls speed : A 40 kg girl, standing at rest on the ice, gives a 60 kg boy, who is also standing at rest on the ice, a shove, What is the girl's speed |

Calculate how deep is the lake : A spherical bubble rises from the bottom of a lake whose temperature is 5?C at the bottom and 28?C at the surface. how deep is the lake |

Determine the acceleration of the electron : An electron moves through a uniform electric field = (2.30 + 4.90) V/m and a uniform magnetic field = 0.400 T. Determine the acceleration of the electron when it has a velocity = 12.0 m/s. ax = m/s2 ay = m/s2 az = m/s2 |

Estimate what is its change in length : A steel section of the Alaskan pipeline had a length of 67.6 m and a temperature of 16.1?C when it was installed. What is its change in length |

Find what is the intensity delivered to the eardrum : A person wears a hearing aid that uniformly increases the sound level of all audible frequencies of sound by 35.7 dB. What is the intensity delivered to the eardrum |

How much original kinetic energy was lost : a 10,000kg railroad car is traveling with an initial speed of 24.0 m/s when it strikes an identical railroad car that is initially at rest. how much original kinetic energy was lost in this collision |

What is the maximum height h to which the block will swing : A 2.0 kg ball is thrown at the suspended 29.4 kg block with a velocity of 3.5 m/s. The coefficient of restitution between the ball and the block is e = 0.69. What is the maximum height h to which the block will swing? (mm) |

Fraction of the initial kinetic energy transferred : A 5.00 g object moving to the right at 20 cm/s makes an elastic head on collision with a 10.0 g object that is initially at rest. Find (a) velocity of each object after the collision and (b) the fraction of the initial kinetic energy transferred to t.. |

## Find the strength of the magnetic fieldFind the strength of the magnetic field that causes a torque of 2.09 × 10-5 N·m to act on the loop when a current of 0.00361 A flows in it |

## Find the pressure difference on an airplane wingThe pilot of an airplane travelling 200 km/h wants to drop supplies to flood victims isolated on a patch of land 165m below. The supplies should be dropped how various seconds before plane is directly overhead. |

## An electric generator contains a coilAn electric generator contains a coil of 90 turns of wire formed into a rectangular loop 40.0 cm by 35.0 cm, placed entirely in a uniform magnetic field with magnitude B = 3.50 T and with Bvec initially perpendicular to the coil's plane. What is the .. |

## Find the energy taken in during each cycleA particular heat engine has a useful power output of 4.80 kW and an efficiency of 25.0%. Find the energy taken in during each cycle |

## Calculate the final image distance relative to the lensTwo identical diverging lenses are separated by 17 cm. The focal length of each lens is -5.8 cm. Determine the final image distance relative to the lens |

## Find the disks magnetic dipole moment about y-axisA disk of radius R and unifrom surface charge density sigma spins with angular velocity Omega about the y-axis. Find its magnetic dipole moment. |

## Obtain the focal length of the concave mirrorA light bulb is placed 14.2 cm in front of a concave mirror. When the concave mirror is replaced by a plane mirror in the same location, Calculate the focal length of the concave mirror |

## Find its charge-to-mass ratioA charged particle moves in a uniform magnetic field of 0.727 T with a period of 8.57 × 10-6 s. Find its charge-to-mass ratio |

## Calculate how far has the car goneA car starts from rest and travels for 5.0 s with a uniform acceleration of +1.6 m/s2. How far has the car gone |

## Determine the tension in the stringAn object of 50.5 N is attached to the free end of a light string wrapped around a reel with a radius of 0.250 m and mass of 3.00 kg. The reel is a solid disk, free to rotate in a vertical plane about the horizontal axis passing through its center.. |

## Calculate angular momentum of the electronA hydrogen atom is in its second excited state (n = 3). calculate angular momentum of the electron |

## What is the change in volume of the beakerIce water is heated to boiling in a 500mL beaker. The beaker's temperature from 0 oC to 100 oC. What is the change in volume of the beaker |

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