You lower a weight of metal in a beaker filled with water standing on a scale. When metal weight hangs above the water weighs 179.6 grams. When it is immersed in the water standing wave suddenly at 234 grams. And when it is lying down on the ground wave has risen to 276 grams. What is the metal weights density?

The collision force as a function : During a crash test, a car moving at 60 km/ hr collides with a rigid barrier and comes to a complete stop in 200 ms. |

After how long will the balls be at the same height : Two boats start together and race across a 64-km-wide lake and back. Boat A goes across at 64 km/h and returns at 64 km/h. Boat B goes across at 32 km/h, and its crew, realizing how far behind it is getting, returns at 96 km/h. Turnaround times ar.. |

How long is the nose of the train in station : An airplane is flying with a velocity of 81.0 m/s at an angle of 24.0^circ above the horizontal. When the plane is a distance 108m directly above a dog that is standing on level ground, a suitcase drops out of the luggage compartment. |

A diver springs upward with an initial speed : Two identical pellet guns are fired simultaneously from the edge of a cliff. These guns impart an initial speed of 24.1 m/s to each pellet. Gun A is fired straight upward, with the pellet going up and then falling back down, eventually hitting the.. |

Calculate the metal weights density : You lower a weight of metal in a beaker filled with water standing on a scale. When metal weight hangs above the water weighs 179.6 grams. |

How much work is done in charging the capacitor : A ship sets out to sail to a point 136 km due north. An unexpected storm blows the ship to a point 108 km due east of its starting point. How far must it now sail to reach its original destination. |

How far beyond the net would the ball hit the ground : An airplane is flying with a velocity of 90 m/s at an angle of 25 above the horizontal. When the plane is a distance 126 straight above a dog that is standing on level ground, a suitcase drops out of the luggage compartment. |

Find the gravitational potential energy on the first day : In one day, a 85 kg mountain climber ascends from the 1440 m level on a vertical cliff to the top at 2360 m. The next day, she descends from the top to the base of the cliff, which is at an elevation of 1310 m. |

What is the wind velocity : Carlos weighs 900N on the surface of the earth. How much would he weigh in the satellite circling earth at an altitude of 3200km? (The earth's radius is 6400 km) |

## Calculate necessary force open a wide gateCalculate P necessary to just start opening the 2 m wide gate. |

## What is the maximum restoring force of bobThree capacitors are arranged. C1 has a capacitance of 5.0 pF, C2 has the capacitance of 10 pF, and C3 has the capacitance of 15 pF. Find the voltage drop across the entire arrangement if the voltage drop across C2 is 311 V. |

## What is mass of the carIf the velocity of the car is increased to 50 km/ hour, what is its kinetic energy. if the velocity is improved to 75 km/ hour, what is its kinetic energy. |

## Computing height at which the water will strike the buildingA firefighter at a distance d from a burning building directs a stream of water from a fire hose at angle θi above the horizontal as shown in Figure. If the initial speed of the stream is vi. At what height h does the water strike the building? |

## Find the equilibrium readings of both scalesA 76 g, 40-{rm cm}-long rod hangs vertically on a frictionless, horizontal axle passing through its center. A 10 g ball of clay travelling horizontally at 2.70 m/s hits and sticks to the very bottom tip of the rod. To what maximum angle, measured fro.. |

## What will be the acceleration of cA wooden rod of negligible mass and length 82.2 is pivoted about a horizontal axis through its center. A white rat with mass 0.440 clings to one end of the stick, and the mouse with mass 0.220 clings to the other end. The system is released from rest.. |

## What fraction of incident intensity is transmitted by systemWhat fraction of incident intensity is transmitted by system |

## Compute the rate at which mechanical energy is transferredEstimate the speed of the water just before striking the turbine blades (overlook air resistance). |

## What portion of jet power lost to producing soundWhat portion of jet power lost to producing sound Powdered steel is placed in a container |

## How various missions will be possible in one yearEvery day our Earth receives 1.55×1022 J energy from the Sun. If we were able to use 0.85 percent of this energy to accelerate spaceships, then how various missions will be possible in one year. |

## Recoil velocity of a raftA 55-kg swimmer is standing on a stationary 210-kg floating raft. The swimmer then runs off the raft horizontally with a velocity of +4.6 meter per second relative to the shore. Calculate the recoil velocity that the raft would have if there were .. |

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