One of the concrete pillars that supports a house is 2.3 m tall and has a radius of 0.69 m. The density of concrete is about 2.2 x 103 kg/m3. Find the weight of this pillar in pounds (1 N = 0.2248 lb).

Find the change in mechanical energy of the car-truck system : A 1 170.0 kg car traveling initially with a speed of 25.000 m/s in an easterly direction crashes into the back of a 9 800.0 kg truck moving in the same direction at 20.000 m/s. What is the change in mechanical energy of the car-truck system |

Wheel rotating with a constant angular acceleration turns : A wheel rotating with a constant angular acceleration turns through 24 revolutions during a 6 s time interval. Its angular velocity at the end of this interval is 18 rad/s. What is the angular acceleration of the wheel? Note that the initial angular .. |

Obtain the number of millimeters by which the ice thickens : A 0.310-m-thick sheet of ice covers a lake. The air temperature at the ice surface is -17.2 °C. In 4.30 minutes, the ice thickens by a small amount. Calculate the number of millimeters by which the ice thickens |

What was the blood pressure at the feet : If Argentinosaurus, a long-necked, gigantic sauropod, had a head height of 18 m and a heart height of 8.3 m, What was the blood pressure (in torr or mm Hg) at the feet |

Find the weight of this pillar in pounds : One of the concrete pillars that supports a house is 2.3 m tall and has a radius of 0.69 m. Find the weight of this pillar in pounds |

Capacitor is a device used in variety of electronic circuits : A capacitor is a device used in a variety of electronic circuits. In a simple design a capacitor consists of two parallel metal plates of area A separated by a distance d. When the plates are connected to the positive and negative terminals of a b.. |

Find the tension in each of the two strings : Two masses m1 and m2 sit on a horizontal, frictionless table and are connected by a light string, Find the tension in each of the two strings |

How much charge flows through a point in the circuit : One hundred turns of (insulated) copper wire are wrapped around a wooden cylindrical core of cross-sectional area 1.20 × 10?3 m2. how much charge flows through a point in the circuit during the change |

Compute the economic order quantity : Compute the economic order quantity - Compute the probability that the mechanics are free |

## Which company has the best offerTwo manufactures of fiber optic material are in competition. ZipCo offers a fiber with a loss coefficient of 2.9E-3/m, Which company has the best offer |

## Find the magnitude of the birds accelerationIt is common to see birds of prey rising upward on thermals. The paths they take may be spiral-like. You can model the spiral motion as uniform circular motion combined with a constant upward velocity. Assume a bird completes a circle of radius 6... |

## What is the frequency of the note played by pipeWhat is the frequency of the note played by this pipe. |

## Determine how much will its length changeThe New River Gorge bridge in West Virginia is a 522 m long steel arch. How much will its length change between temperature extremes -19.4oC and 35.5oC |

## What is the tension in the rope at this pointArlene is to walk across a high wire strung horizontally between two buildings 11.0 m apart. The sag in the rope when she is at the midpoint is 10.0°. If her mass is 56.0 kg, what is the tension in the rope at this point. |

## What is the speed of the truckA baseball pitcher can throw a ball with a speed of 40m/s . He is in the back of a pickup truck that is driving away from you. What is the speed of the truck |

## Q1 a 92 kg man standing on a surface of negligible frictionq1. a 92 kg man standing on a surface of negligible friction shoves a 73 g stone lying at his feet giving it a velocity |

## Calculate the magnitude of the force on the chargeFour equal charges of +4.9×10-6 C are placed on the corners of one face of a cube of edge length 7.0 cm. calculate the magnitude of the force on the charge |

## What acceleration occurs when the plane is verticalWhat relationship did Galileo discover about a ball%u2019s acceleration, What acceleration occurs when the plane is vertical |

## Find the change in the interior volume of the shellA thin spherical shell of silver has an inner radius of 2.20 10-2 m when the temperature is 17° C. Find the change in the interior volume of the shell |

## Do the atoms behavemost like a simple harmonic oscillatorThe potential energy U(r) between any two atoms, when given as a function of the distance between their centers, do the atoms behavemost like a simple harmonic oscillator |

## What is magnitude of electric field due to positive chargesThree equal positive point charges of magnitude Q = 6.00? C are located at three corners of a square of edge length d = 2.6 cm. A negative charge -18.00? C is placed on the fourth corner. |

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