One hundred turns of insulated copper wire are wrapped around an iron core of cross-sectional area 0.100 m2. The circuit is completed by connecting the coil to a 10-ohms resistor. As the magnetic field along the coil axis changes from 1.00 T to 4.5 Tin 3milliseconds, calculate

(a) The induced emf in the coil

(b) The induced current through the resistor.

Sound intensity equal to that of normal conversation : A typical decibel level for a buzzing mosquito is 40 dB and normal conversation is approximately 50 dB. How many buzzing mosquitoes will produce a sound intensity equal to that of normal conversation? |

Determine the magnitude and direction of the impulse : After a 0.250-kg rubber ball is dropped from a height of 1.80 m, it bounces off a concrete floor and rebounds to a height of 1.20 m. (a) Determine the magnitude and direction of the impulse delivered to the ball by the floor. magnitude? direction? |

Derive marginal productivity of capital : Determine whether the indicated products are competitive-complementary and derive marginal productivity of capital. |

Evaluate the struck balls velocity after the collision : A billiard ball moving at 6.00 m/s strikes a stationary ball of the same mass. find the struck ball's velocity after the collision |

Induced emf in the coil-induced current through the resistor : One hundred turns of insulated copper wire are wrapped around an iron core of cross-sectional area 0.100 m2. The circuit is completed by connecting the coil to a 10-ohms resistor. As the magnetic field along the coil axis changes from 1.00 T to 4... |

Obtain the impulse delivered to the ball by tennis racquet : A tennis player receives a shot with the ball (0.060 0 kg) traveling horizontally at 55.5 m/s and returns the shot with the ball traveling horizontally at 36.0 m/s in the opposite direction. find the impulse delivered to the ball by the tennis racq.. |

Evaluate the equilibrium constant of n204 : Given this reaction at equilibrium N204?-? 2N02 calculate the equilibrium constant (Keq) If the concentration of N204 and NO2 are 0.0238 M and 0.196 M respectively |

How far does the canoe move during this process : A 47.0 kg woman stands up in a 70.0 kg canoe of length 5.00 m . She walks from a point 1.00m from one end to a point 1.00m from the other end. how far does the canoe move during this process |

Applying a constant horizontal force of magnitude : A worker pushing a 35.0-kg wooden crate at a constant speed for 11.5 m along a wood floor does 320 J of work applying a constant horizontal force of magnitude F0 on the crate. (a) Determine the value of F0. (b) If the worker now applies a force great.. |

## How much time is required for the car to pass the truckThe driver of a car wishes to pass a truck that is traveling at a constant speed of 19.3 m/s . Initially, the car is also traveling at a speed 19.3m/s, How much time is required for the car to pass the truck |

## Find the threshold wavelengthLight of 546 nm wavelength is incident on a cesium surface that has a work function of 1.91 eV. find the threshold wavelength |

## What horsepower is required of the air conditioner motorAn air conditioner operating between 97F and 72F is rated at 3900 Btu/h cooling capacity. What horsepower is required of the air conditioner motor |

## How far apart are the two rocks after 1.5 secondsFrom the top of a 40.0m high cliff, two rocks are simultaneously thrown. One is thrown upwards at 20.0m/s, the other is thrown downwards at 8.0 m/s. How far apart are the two rocks after 1.5 seconds? |

## Determine the precession rateA top spins at 28 rev/s about an axis that makes an angle of 33° with the vertical. The mass of the top is 0.44 kg, What is the precession rate |

## Calculate what is the mass of the ballAn athlete catches a ball traveling at 20 m/s with her hands. Between the time she makes contact with the ball and the time the ball stops moving, What is the mass in kg of the ball |

## What is her uncorrected near pointIf Michaela needs to wear reading glasses with refractive power of +3.0 D, what is her uncorrected near point |

## Determine the magnitude of the average induced emfa single circular loop with radius of 10.0cm lies in the plane of the paper while a uniform magnetic field points out of the paper, what is the magnitude of the average induced emf |

## Obtain the force of friction that the driveway exertshouse painter stands 3 m above the ground on a 5.2-m-long ladder that leans against the wall at a point 4.7 m above the ground. find the force of friction that the driveway exerts on the bottom of the ladder |

## What are its volume and surface gravity compared to earthDensity-Gravity Problem: a) Planet Vulcan has twice the mass of Earth and the same radius. What are its volume, density and surface gravity compared to Earth? |

## Determine the constitutive parameters of the materialThe intrinsic impedance and the wavelength of a uniform plane wave traveling in an unknown dielectric at 3 GHz are measured to be ~ 194 Ω and ~ 5 .14 cm respectively. Determine the constitutive parameters (i.e. εr, and μr) of the material. |

## What is the turntables rotation angular velocityA 220, 45.0-cm-diameter turntable rotates on frictionless bearings at 55. A 21.0 block sits at the center of the turntable. A compressed spring shoots block radically outward along a frictionless groove in the surface of the turntable. |

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