A sinusoidal current i= Icoswt has an rms value of I rms = 2.20 A. What is the current amplitude? The current is passed through a full-wave rectifier circuit. What is the rectified average current? Which is larger: or ? Explain.

Determine the amount of air added to the tank in lbm : A rigid tank contains 40 lbm of air in 20 psia and 70 degrees F. More air is added to the tank untill the pressure and temperature rise to 35 psia and 90 degrees F, respectively. |

Find how far from the shoulders is mans center of gravity : A man doing a slow push-up is approximately in static equilibrium. His body is horizontal, with his weight of 757 N supported by his hands and feet, how far from the shoulders is the man's center of gravity |

Describe and implement virtual local area networks : Describe and implement Virtual Local Area Networks on a computing network and compare and contrast dynamic routing, distance vector routing, and link-state routing protocols. |

Find how much work is done by the gravitational force : A 5.0-kg object is pulled along a horizontal surface at by a 15 N force acting 20? above the horizontal. How much work is done by the gravitational force |

What is the rectified average current : A sinusoidal current i= Icoswt has an rms value of I rms = 2.20 A. What is the current amplitude, What is the rectified average current |

Calculate how much power does it radiate : Consider a black body of surface area 28.0 cm2 and temperature 5600 K. How much power does it radiate |

Determine the uncertainty in the ducks position : Suppose a duck lives in a universe in which h = 2? J · s. The duck has a mass of 2.55 kg and is initially known to be within a pond 1.65 m wide. determine the uncertainty in the duck's position after this time interval |

Explain the light bulb glows brightly when testing : Beakers W, X, Y, and Z contain either aqueous NaOH, KOH, LiOH, or NH4OH. Which beaker contains aqueous ammonia if the light bulb glows brightly when testing the conductivity of beakers W, X, and Z |

Evaluate the percentage ionization of nitrous acid : Calculate the percentage ionization of nitrous acid in a solution that is 0.222 M in nitrous acid (HNO2) and 0.278 M in potassium nitrite (KNO2). The acid dissociation constant of nitrous acid is 4.50 E -4. which E is an exponential of 10. |

## What was the cars original kinetic energyA 1,200 kg car going 25 m/s is brought to stop using its brakes. Let's assume that a total of approximately 20 kg of iron in the brakes, What was the car's original kinetic energy |

## Determine how hard did you push the boxyou push a 20kg box on a wooden floor, downward to the right at an angle of 60degrees to the vertical, with a constant speed of .5m/s. How hard did you push the box |

## Calculate the diameter of the holeA hole in an aluminum plate has a diameter of 1.179 at 24.00. What is the diameter of the hole at 199.0 |

## Find rate of interstellar extinction in direction of starA certain red giant star has a luminosity of 100,000 times that of the Sun and is located 600 light-years from Earth. calculate the rate of interstellar extinction in the direction of the star |

## Questionan astronaut shipwrecked on a remote planet withquestionan astronaut shipwrecked on a remote planet with unidentified characteristics is on top of a cliff which she |

## Obtain the magnitude of the electric field on axisA charged line extends from y = 2.50 cm to y = -2.50 cm. The total charge distributed uniformly along the line is -8.50 nC. Find the magnitude of the electric field on the x-axis at x = 10.0 cm |

## Determine the energy of the ground stateTwo electrons are confined in an extremely thin wire of length a. You may treat this wire as a one-dimensional infinite potential well. What is the energy of the ground state |

## Find the magnitude of the resulting magnetic fieldA sphere of radius R is uniformly charged to a total charge of Q. It is made to spin about an axis that passes through its center with an angular speed ω. Find the magnitude of the resulting magnetic field at the center of the sphere. |

## Find the frictional force lower crate exerts on upper crateTwo wooden crates rest on top of one another. The smaller top crate has a mass of m1 = 16.0 kg and the larger bottom crate has a mass of m2 = 90.0 kg. find the frictional force the lower crate exerts on the upper crate |

## What is the comparable resistance of light stringA string of 13 identical Christmas tree lights are connected in series to a 127 V source. The string dissipates 63 W. What is the comparable resistance of light string. |

## Find the final temperatures of the cubes to be differentHow much heat does it take to increase the temperature of 4.50 moles of a diatomic ideal gas through an amount 40 if the gas is held at constant volume? The gas molecules can translate and rotate but not vibrate. |

## By what factor will the power used changeA 70-? electrical appliance and a 110-? electrical appliance are plugged into the outlets of a house. By what factor will the power used change if an additional 140-? electrical device is plugged in? |

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