Delivery trucks that operate by making use of energy stored in a rotating flywheel have been used in Europe. The trucks are charged by using an electric motor to get the flywheel up to its top speed of 184-? rad/s. One such flywheel is a solid, homogeneous cylinder with a mass of 450 kg and a radius of 1.0 m. What is the kinetic energy of the flywheel after charging?

If the truck operates with an average power requirement of 9.0kW, for how many minutes can it operate between chargings?

Explain ammonium carbamate can dissociate into gases : Ammonium carbamate can dissociate into gases at 25 C according to the reaction: NH2COONH4(s) 2NH3(g) + CO2(g) If sufficient ammonium carbamate is sealed in a flask, the total pressure will be 0.117 atm at equilibrium. What is the value of Kp at .. |

At what angle with the ground is the shell projected : A 1350 kg cannon, which fires a 70 kg shell with a speed of 606 m/s relative to the muzzle, At what angle with the ground is the shell projected |

What are the firm marginal and average tax rates : What are the firm's marginal and average tax rates on taxable income? |

What is annual demand for a single item d : A production process is used to produce 20 different items, under intermittent batch production. When inventory or projected inventory of an item drops to a certain level, a production order is released for Q units of that item. Because product dem.. |

What is the kinetic energy of the flywheel after charging : Delivery trucks that operate by making use of energy stored in a rotating flywheel have been used in Europe. What is the kinetic energy of the flywheel after charging |

Calculate the internal rate of return : The initial outlay associated with the expansion would be $1,950,000, and the project would generate free cash flows of $450,000 per year for six years. The appropriate required rate of return is 9 percent. |

Compute the ph you would expect to measure : calculate the pH you would expect to measure if 15.0mL of 0.5M acetic acid were mixed with 25.0mL of 0.5M sodium acetate |

Compute the market value of the bonds : Sincere Stationery Corporation needs to raise $500,000 to improve its manufacturing plant. It has decided to issue a $1,000 par value bond with a 14 percent annual coupon rate and a 10 year maturity. The investors require a 9 percent rate of retur.. |

Calculate the period of revolution of the asteroid in years : An asteroid, whose mass is 1.70×10-4 times the mass of Earth, Calculate the period of revolution of the asteroid in years |

## Find the force that each person exerts on the beamA uniform beam of length L = 7.80 m and weight 3.95 102 N is carried by two workers, Determine the force that each person exerts on the beam |

## The velocity of the third piece while exploding an objectAn object at rest explodes into three pieces of equal masses. One moves east at 23 m/s, while the second piece moves northwest at 14 meter per second. Find the velocity of the third piece? |

## Illustrate what speed will the string breakA boy uses this string to whirl a 10-kg stone in a horizontal circle of radius 10 m. The boy continuously increases the speed of the stone. At approximately illustrate what speed will the string break? |

## Compute the charge on the ionA uniform electric field of magnitude 445 N/C pointing in the positive x-direction acts on an electron, that is initially at rest. The electron has moved 3.10 cm. |

## What height will the stream of water hit the buildingA fireman, 25.6 m away from a burning building, directs a stream of water from a ground level fire hose at an angle of 39.5° above the horizontal |

## What is the height of the image in millimeters on the filmA movie camera with a (single) lens of focal length 95 mm takes a picture of a person standing 28 m away. what is the height of the image in millimeters on the film |

## What is the radius of the centrifugeThe centripetal acceleration in a horizontal centrifuge is 75 g's when it is rotating at 2000 rpm, What is the radius of the centrifuge |

## What is the distance traveled from starting point to launchWhat is the distance traveled from starting point to launch for an aircraft, An aircraft starts at rest and is accelerated at 13.6 m/s/s for 11.3 seconds, at which time the aircraft launches. |

## Find the initial temperature of the waterlady ate a whole medium size pizza storing up 120 food Calories. This energy is used to heat up 2 liters of water from a certain initial temperature to a final temperature of 80 deg.C, what was the initial temperature of the water? |

## What are the radiuses of the baseball path curvatureA baseball is bunted down the third-base line leaving the bat from a height of 0.850m with an initial velocity of 4.00m/s at an angle of 37.87° above horizontal. |

## What is the skier''s launch speedWhile on vacation you rent a moped and go cruising around a tropical island. If you take a 10.0° banked curve with a radius of 15.0 meters at 12.0 m/s, what is the minimum coefficient of static friction between your tires and road to keep the tires f.. |

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