Bob (m = 60kg) is wearing a sticky suit. Just as he reaches his desired speed of 6m/s, he reaches the edge of ice (assume the ice is frictionless) and collides with a large crate (m = 250kg). Bob and the crate stick together and slide along level ground (uk = 0.60). a) How far do Bob and the large crate slide before coming to rest? b) How elastic was the collision? c) How much thermal energy has been generated during the slide?

What is the magnitude of the larger of the two resistances : When a 32.0-V emf device is placed across two resistors in series, a current of 11.0 A is flowing in each of the resistors. When the same emf device is placed across the same two resistors in parallel, the current through the emf device is 56.0 A. Wh.. |

What is the resistance of the platinum wire : Two wires are identical, except that one is silver (resistivity = 1.59×10-8 W·m) and the other is platinum (resistivity = 1.06×10-7 W·m). The silver wire has resistance of 1.56 mW. What is the resistance of the platinum wire? |

What is the minimum pulling force that the clown must exert : The drawing shows a circus clown who weighs 725 N. The coefficient of static friction between the clown's feet and the ground is 0.51. He pulls vertically downward on a rope that passes around three pulleys and is tied around his feet. What is the mi.. |

A baseball is thrown with an inital velocity : A baseball is thrown with an inital velocity of 20 m/s along the horizontal axis and 15 m/s along the vertixal axis. The ball soon reaches the highest point, what is the speed at that point? (ignore air friction) I know the answer is 20 m/s, just nee.. |

How elastic was the collision : Bob (m = 60kg) is wearing a sticky suit. Just as he reaches his desired speed of 6m/s, he reaches the edge of ice (assume the ice is frictionless) and collides with a large crate (m = 250kg). Bob and the crate stick together and slide along level gro.. |

Calculate the bulk modulus of the liquid : In a liquid with a density of 1500 kg/m^3 , longitudinal waves with a frequency of 420 hz are found to have a wavelength of 8.50m . Calculate the bulk modulus of the liquid. 2) A metal bar with a length of 1.60 m has a density of 6200 kg/m^3. Long.. |

A uniform marble rolls down a symmetric bowl : A uniform marble rolls down a symmetric bowl, starting from rest at the top of the left side. The top of each side is a distance { h} above the bottom of the bowl. |

When a single high-resistance bulb is connected : When a single high-resistance (long) bulb is connected to a 1.5 volt battery, the current through the battery is about 80 milliampere. If you add another high-resistance (long) bulb in parallel, the battery current of course increases to 160 milliamp.. |

What is its rotational speed in revolutions per minute : At what depth under water does the pressure increase by 100,000 Pa? The Earth rotates with a period of one day. What is its rotational speed in revolutions per minute? The Earth rotates with a period of one day. What is its rotational speed in revolu.. |

## What is the kinetic energy of the flywheel after chargingDelivery 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 |

## Find with what speed does the bucket strike the watera bucket of water of mass 14.7 is suspended by a rope wrapped around a windlass, that is a solid cylinder with diameter 0.280m with mass 11.6 kg. with what speed does the bucket strike the water |

## What is the length of the same spaceshipSuppose an observer measures the length of a stationary spaceship to be 6 m (note: m for meters). what is the length of the same spaceship |

## What is the maximum velocity of the particleThe x-position of a particle is given by the expression x(t)=(4.0 m)cos(4.0?t+ 5.0?) , where x is in meters and t is in seconds. What is the maximum velocity of the particle |

## Calculate the linear density of the stringThe middle C string on a piano is under a tension of 944N. The period and wavelength of a wave on this string are 3.82 ms, calculate the linear density of the string |

## Evaluate the potential difference between the platesIn a Millikan oil-drop experiment (Section 22-8), a uniform electric field of 3.91 x 105 N/C is maintained in the region between two plates separated by 6.80 cm |

## Calculate her velocity relative to the ice surfaceA 42-kg girl is standing on a 125-kg plank. The plank, originally at rest, is free to slide on a frozen lake, which is a flat, frictionless surface. What is her velocity relative to the ice surface |

## Find the magnitude of the impulse delivered to the floorA 0.2 kg steel ball is dropped straight down onto a hard, horizontal floor and bounces straight up. FIND the magnitude of the impulse delivered to the floor by the steel ball |

## How fast will the shell be traveling when it hits the groundA mortar crew is positioned near the top of a steep hill. Enemy forces are charging up the hill and it is necessary for the crew to spring into action. |

## How large is the diameter of the camera requiredPhotographic cameras on spy satellites supposedly can read the license plate of a car on the ground. How large is the diameter of the camera required for such a feat |

## What is the hall voltage generatedA flat conductor of thickness 0.500 mm is placed in a magnetic field of 0.200 T perpendicular to the flat surface. what is the Hall voltage generated when 3.40 A flows along the conductor |

## Find the work done by the machineA machine does work at a rate given by Pct^2 , where c = 15W/s^2 and t is time. Find the work done by the machine between 15s and 20s? huh |

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