At the end of an amusement park ride, you want the gondola to stop without the acceleration exceeding 2 g's. If the total mass of the gondola and occupants is 2,288 kg, what is the maximum allowed braking force? (The answer is a positive braking force, not a negative force).

What is the index of refraction of the synthetic material : an experiment is set up in which a red laser with a wavelength of 656.2m is directed through a large, irregularly shaped piece of synthetic material. What is the index of refraction of the synthetic material |

Explain what type of heat transfer mechanism is employed : A 40 oF breeze of 10 miles per hour blows over the top of a round open-top water cooling tank which has a bulk temperature of 100 oF. What is the rate of energy in kW that enters into the air What type of heat transfer mechanism is employed in thi.. |

Find the net force acting on the plane and pilot : An ultralight plane and pilot have a total mass of 127 kg. find the net force acting on the plane and pilot |

Determine air pressure at the top of a 300 m high building : Determine the air pressure at the top of a 300 m high building by assuming the density of air stays constant at the z = 0 value. Now compute the pressure assuming the density of the air varies. Is there a significant difference. |

What is the maximum allowed braking force : At the end of an amusement park ride, you want the gondola to stop without the acceleration exceeding 2 g's. what is the maximum allowed braking force |

Should chen buy the new machine : The firm's WACC is 10%, and its marginal tax rate is 35%. Should Chen buy the new machine? |

Compute the mass of the black hole : A supermassive black hole passes through the edge of the solar system 1.20 x 10^13 m away. What is the mass of the black hole |

By how much would the value of the company increase : By how much would the value of the company increase if it accepted the better machine? Round your answer to the nearest cent. |

Describe what is the maximum acceptable internal pressure : of 2640 psi with a factor of safety of 2.0 with respect to yielding. the yield stress of the steel is 65,000 psi in tension and 32,000 psi in shear. the diameter of the tank is 7.0 in. the minimum required wall thickness is 0.289 in. |

## A particle initially located at the originA 1500 {rm kg} car skids to the halt on a wet road where mu_k = 0.50. How fast was the car travelling if it leaves 66-{rm m}-long skid marks. |

## What is the increase in the cubes surface areaAt 12°C, a brass cube has an edge length of 25 cm. What is the increase in the cube's surface area when it is heated from 12°C to 97°C |

## Suppose the same static friction coefficientA uniform plank of length 5.8m and weight 229N rests horizontally on two supports, with 1.10 m of the plank hanging over the right support (see the drawing). To what distance x can a person who weighs 450N walk on the overhanging part of the plank be.. |

## Use newtons first and second laws of motionA rock with mass m = 3.70 kg falls from rest in a viscous medium. The rock is acted on by a net constant downward force of F = 19.3 N and by a fluid resistance force. |

## Find magnitude and direction of its resultant displacementA bird, starting from its nest (we'll call that the origin), flies 24.0 km due southeast. It then changes directions and flies 26.0 km in a direction 60° north of east. Find the magnitude and direction of its resultant displacement. |

## What is the distance of closest approachTwo protons are moving directly toward one another. When they are very far apart, their initial speeds are 2.10 x 105 m/s. What is the distance of closest approach? |

## What is the reletive velocity of the two atomsatom X moves to the right at .99c and atom Y moves to the left at .99c according to an observer |

## What was the driver''s reaction timeA woman stands on a scale in a moving elevator. Her mass is 60.9 kg, and the combined mass of the elevator and scale is an additional 819 kg. Starting from rest, the elevator accelerates upward. Through the acceleration, the hoisting cable applies a .. |

## Calculate the velocity (direction) of the planeIf a wind begins blowing from the southwest at a speed of 110km/h (average), calculate the velocity (magnitude) of the plane |

## What polarity of charge should the rod possessAssume the balloon and rod to be point charges. The Coulomb force constant is 1/(4? ?0) = 8.99 × 10^9 N·m2/C2 and the acceleration due to gravity g = 9.81 m/s2. |

## Find the average sound level13 cars in a circle at a boom box competition produce a 110 dB sound level at the center of the circle. What is the average sound level produced there by each |

## Write down an expression for the displacement as a functionStanding on ground 3.5 from the wall of a building, you want to throw a package from your 1.6 shoulder level to someone in a second-floor window 4.5 above the ground. |

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