A patient with thyroid problems has radioactive iodine (123I53) deposited in his thyroid gland. If the 123I53 has an initial activity of 2.5 MBq, what is its activity after 24 days?

Calculate the total angular momentum of our moon : Calculate the total angular momentum of our Moon relative to the center of the Earth. You may assume that the Moon is a uniform sphere |

What is the magnitude of the force absorbed by the athlete : When a rifle is fired, the person firing the rifle absorbs the recoil. Consider an Olympic biathlete firing a competition rifle. What is the magnitude of the force absorbed by the athlete |

Calculate the optimum production plan : Calculate the optimum production plan the firm should follow next year given the above constraints. |

Explain the differences in the four methods of costing : Explain the differences in the four methods of costing you have used in (a.i) and (a.ii) and in which situation you would use them. |

What is its activity after given days : A patient with thyroid problems has radioactive iodine (123I53) deposited in his thyroid gland. If the 123I53 has an initial activity of 2.5 MBq, what is its activity after 24 days |

Compute the total momentum of system : A point mass of 1kg collides elastically with a stationary point mass of 5 kg. calculate total momentum of system and kinetic energy of centre of mass |

Calculate the half-life of this material : After 2.02 days, the activity of a sample of an unknown type radioactive material has decreased to 82.2% of the initial activity. What is the half-life of this material |

How many moles of oxygen are present : Suppose 12.5 g of oxygen (O2, 32.0 g/mol) is heated at constant atmospheric pressure from 19.0°C to 100°C. How many moles of oxygen are present |

By how much did the internal energy of the gas increase : When 22.9 J was added as heat to a particular ideal gas, the volume of the gas changed from 54.3 cm3 to 100 cm3 while the pressure remained at 1.00 atm. By how much did the internal energy of the gas increase |

## How much current passes through each capacitorTwo 40.0 µF capacitors in parallel are connected across a sinusoidal ac generator operating at 60.0 Hz. how much current passes through each capacitor |

## By what factor does this angular frequency changeA circuit contains a 4.50-nF capacitor and a 4.00-mH inductor. By what factor does this angular frequency change if a 1.00-kilo ohms resistor is connected in series with the capacitor and the inductor |

## What is the electric flux through the wallA vertical wall (5.4 m 2.4 m) in a house faces due east. A uniform electric field has a magnitude of 164 N/C. This field is parallel to the ground and points 32° north of east. What is the electric flux through the wall? |

## Calculate the average force on the dummyIn a different car, the distance the dummy moves while being stopped is reduced from 0.750 m to 0.270 m, calculate the average force on the dummy as that car stops |

## Determine the mass is doubledA mass on a string of unknown length oscillates as a pendulum with a period of 6 s. What is the period in the following situations, determine The mass is doubled |

## Illustrate what is the contribution margin per tonTimberland’s incremental tax rate is 30%. Prepare a budgeted income statement assuming that Timberland sells 2,500 tons. Illustrate what is the contribution margin per ton? |

## Determine what net force pushes out on the windowAn office window has dimensions 3.4 m by 1.7 m. As a result of the passage of a storm, the outside air pressure drops to 0.95 atm, but inside the pressure is held at 1.0 atm. |

## Determine the new rotational speed of the diskA uniform disk with a mass of 875 g and radius 17.0 cm is rotating on frictionless bearings with an rotational speed of 18.0 Hz, What is the new rotational speed of the disk |

## How far did the airplane travel in the northerly directionAn airplane travels x = 4.50 x 10^2 km due east and then travels an unknown distance y due north. Finally, it returns to its starting point by traveling a distance of r = 525 km. How far did the airplane travel in the northerly direction. |

## What is the speed of the windA small airplane flies with a speed relative to the ground (ground speed) of 212.0 km/h in a direction 19.0 degrees to the east of north. what is the speed of the wind |

## Determine the volume of the kettleA copper kettle contains water at 24.0 °C. When the water is heated to 99.0 °C, Determine the volume of the kettle |

## Determine what would be the radius of the helical motionAn electron enters a magnetic field of 0.7 T, moving perpendicular to it with a speed of 5·105 m/s. If an electron were sent at the same speed, but at an angle of 70o to the magnetic field. |

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