A length of rope is wrapped around a spool of weight W with inner radius r and outer radius R. The rope is pulled with a tension T at an angle ?. Which of the following conditions must be satisfied for the spool to slide uniformly without rolling? cos? = r/R sin? = r/R T = W T = Wsin? T = Wcos?

Thin spherical shell rolls down an incline without slipping : A thin spherical shell rolls down an incline without slipping. If the linear acceleration of the center of mass of the shell is 0.30g, what is the angle the incline makes with the horizontal? |

Find the radios maximum speed : Equipment to be used in airplanes or spacecraft is often subjectedto a shake test to be sure it can withstand the vibrations that maybe encountered during flight. Find the radio's maximum speed |

Find the acceleration of the center of mass of the ball : A basketball rolls without slipping down an incline of angle ?. The coefficient of static friction is ?s. Model the ball as a thin spherical shell. (Use any variable or symbol stated above along with the following as necessary: m for the mass of the .. |

Calculate the gauge pressure of the water guns reservoir : A hand-pumped water gun is held level at a height of 0.65 m above the ground and fired. Find the gauge pressure of the water gun's reservoir at the instant when the gun is fired |

A length of rope is wrapped around a spool of weight : A length of rope is wrapped around a spool of weight W with inner radius r and outer radius R. The rope is pulled with a tension T at an angle ?. Which of the following conditions must be satisfied for the spool to slide uniformly without rolling? co.. |

Calculate the time required for one complete revolution : A particular satellite was placed in a circular orbit about 160 mi above Earth. Determine the time required for one complete revolution |

A window washer pulls herself upward using the bucket-pulley : A window washer pulls herself upward using the bucket-pulley apparatus shown in Fig. 4-42. The mass of the person plus the bucket is 60 kg. (a) How hard must she pull downward to raise herself slowly at constant speed? If she increases this force by .. |

Bucket by a cord running over a frictionless pulley : A 28.0 kg block is connected to an empty 1.00 kg bucket by a cord running over a frictionless pulley (Fig. 4-57). The coefficient of static friction between the table and the block is 0.460 and the coefficient of kinetic friction between the table an.. |

Perform a heritage assessment on families : Perform a heritage assessment on three families and complete the "Heritage Assessment Tool" and submit to: - one assessment for each of the three families interviewed. |

## Find the gain in potential energy at the topA bowling ball encounters a 0.760m vertical rise on the way back to the ball rack, as the drawing illustrates. find the gain in potential energy at the top |

## Find the electric potential energy of the system of chargesa point charge q = +87.1 micro coulombs is held fixed at the origin. A second charge, with mass m = 0.0576 kg and charge q = +3.5 micro coulombs, Find the electric potential energy of the system of charges |

## What must be the direction of the third forceThree forces act on a moving object. One force has a magnitude of 82.8 N and is directed due north. What must be the direction of the third force |

## How fast does it move after the bullet emergesTherefore of his observations, Ole Roemer concluded that eclipses of Io by Jupiter were delayed by 22 min throughout a six-month period as the Earth moved from the point in its orbit where it is closest to Jupiter to the diametrically opposite point .. |

## Find the area of the parallelogramThe displacement vectors 38.5 cm at 15.0° and 23.0 cm at 62.0° both start from the origin and form two sides of a parallelogram. Find the area of the parallelogram |

## What is the number of turns for the coils of the solenoidAn ideal solenoid has a field of magnitude 0.10 T when carrying a current of 200 A. The solenoid is 5.0 m long. What is the number of turns for the coils of the solenoid |

## Compute the distance between the cliffsA hunter is standing on flat ground between two vertical cliffs that are directly opposite one another. He is closer to one cliff than the other. find the distance (in m) between the cliffs |

## Determine what is its terminal velocityAn air bubble of 1.0-mm radius is rising in a container with vegetable oil of specific gravity 0.82 and viscosity 0.18 Pa · s. What is its terminal velocity |

## Determine the range of the bombAn airplane is descending at an angle of 20 deg with respect to the horizontal when it drops a bomb, determine the range (horizontal distance traveled) of the bomb and the velocity at which it hits the ground. |

## Find the electric potential in volts due to ammonia moleculeThe ammonia molecule NH3 has a permanent electric dipole moment equal to 1.47 D, where 1 D = 1 debye unit = 3.34 x 10-30 C-m. find the electric potential in volts due to an ammonia molecule |

## What is the average power output of the space heaterAt its highest temperature, a space heater has a resistance of 15.5 ?, What is the average power output of the space heater |

## What is the magnitude of the force experienced by the protonA glass bead (diamter of about 2 mm) has a total charge of +10 nC. A proton is located at a distance of 6 cm from the center of the glass bead. What is the magnitude of the force experienced by the proton |

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