A radio wave transmits 16.7 W/m2 of power per unit area. A flat surface of area A is perpendicular to the direction of propagation of the wave. Assuming the surface is a perfect absorber, calculate the radiation pressure on it. nPa

Distance from the seismograph to the focus of the quake : A seismographic station receives S and P waves from an earthquake, separated in time by 16.8 s. Assume the waves have traveled over the same path at speeds of 4.50 km/s and 7.40 km/s. Find the distance from the seismograph to the focus of the quake. |

Green–yellow region of the visible electromagnetic spectrum : The eye is most sensitive to light having a frequency of 5.45 1014 Hz, which is in the green–yellow region of the visible electromagnetic spectrum. What is the wavelength of this light? m |

Magnetic field in the sunlight at the earths location : Assume the intensity of solar radiation incident on the cloud tops of the Earth is 1 518 W/m2. (a) Taking the average Earth–Sun separation to be 1.496 1011 m, calculate the total power radiated by the Sun. W (b) Determine the maximum value of the ele.. |

Determine the corresponding electric field amplitude : In 1965, Arno Penzias and Robert Wilson discovered the cosmic microwave radiation left over from the Big Bang expansion of the Universe. Suppose the energy density of this background radiation is 3.7 10-14 J/m3. Determine the corresponding electric f.. |

A radio wave transmits-calculate the radiation pressure : A radio wave transmits 16.7 W/m2 of power per unit area. A flat surface of area A is perpendicular to the direction of propagation of the wave. Assuming the surface is a perfect absorber, calculate the radiation pressure on it. nPa |

Calculate the speed of the balls just after the collision : A 5 kg ball and 10 kg ball approach eachother with a speed of 20 m/s. If they collide perfectly inelasticially, the speed of the balls just after the collision is what |

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 |

## What is the index of refraction of the plastic objectYou shine a laser on a plastic prism made from an unknown material and measure the angles relative to the normal that the light takes both inside and outside the medium. What is the index of refraction of the plastic object |

## Calculate the average coefficient of linear expansionThe magnitude of q is chosen to make the potential difference between spheres 430 V, with the inner sphere at higher potential. Compute q. |

## Question1it has been asserted that a permanent magnet isquestion1it has been asserted that a permanent magnet is really just made up of an insulator with fixed positive |

## Find how long does it take it to reach its max heightan object is thrown upwards with a speed of 14 m/s. How long does it take it to reach its max height |

## How much less power is wastedA power station delivers 520 kW of power at 12,000 V to a factory through wires with total resistance 3.0. How much less power is wasted if the electricity is delivered |

## Find the highest possible value for the fundamentalfrequencyYou are studying guitar strings and are able to measure a few of (but not all) the standing wave frequencies for a particular string. what is the highest possible value for the fundamental frequency |

## Determine the maximum speed and the earliest timeA particle moving along the x axis in simple harmonic motion starts from its equilibrium position, the origin, at t = 0 and moves to the right. The amplitude of its motion is 1.70 cm and the frequency is 1.30 Hz. |

## Q a 30 gram mass is hanging from a spring whose unstretchedq. a 30 gram mass is hanging from a spring whose unstretched length is 20 cm and whose spring constant is 2.5 nm. in |

## Calculate the angular speed of rotationIn an amusement park ride, cars are suspended from L = 4.29 m cables attached to rotating arms at a distance of D = 6.11 m from the axis of rotation. What is the angular speed of rotation |

## Find the net electrostatic force on chargecharge q1=1.4x10-8C is placed at the origin. Charges q2=-1.8x10-8C and q3=2.1x10-8C are placed at points (0.18m , 0m) and (0m , 0.24m) |

## Compute the total distance coveredA subway train starts from rest at a station and accelerates at a rate of 1.60 m/s squared for 14 seconds. Find the total distance covered |

## How much work does the gas do in the processA balloon contains 1.8mol of helium at 1.0atm initially at 180 degree C. How much work does the gas do in the process |

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