A hill that has a 15.8 % grade is one that rises 15.8 m vertically for every 100.0 m of distance in the horizontal direction. At what angle is such a hill inclined above the horizontal?

What was the total impulse on the ball : You drop a 12-g ball from a height of 1.5 m and it only bounces back to a height of 0.81m. What was the total impulse on the ball when it hit the floor |

What is the horizontal distance x between the two balloons : The two hot-air balloons in the drawing are 48.2 m and 61.0 m above the ground. A person in the left balloon observes that the right balloon is 13.3° above the horizontal. |

Limitation of break-even analysis : Plot the date of your answer to above inthe form contribution sales graph known as profit volume graph. and to comment on the result shown and state the break- even point. |

Estimate the radius of curvature of the mirror : A concave makeup mirror is designed so the virtual image it produces is three times the size of the object, What is the radius of curvature of the mirror |

At what angle is such a hill inclined above the horizontal : A hill that has a 15.8 % grade is one that rises 15.8 m vertically for every 100.0 m of distance in the horizontal direction. At what angle is such a hill inclined above the horizontal |

The difference between the energy of the products : The difference between the energy of the products and the energy of the reactants D. Undefined because it depends on whether the reaction is endothermic or exothermic |

What is the period of the mass-spring system : A spring with a spring constant of 1.5 * 10^2 N/m is attached to a 1.4 kg mass and then set in motion. What is the period of the mass-spring system |

What would be the net charge on a 1-kg sample of gas : Suppose that the charge on the electron and proton did not have the same magnitude but instead differed by one part in 10^10. What would be the net charge on a 1.0-kg sample of helium gas |

Find the maximum velocity of the poston : A piston in an automobile engine is in simple harmonic motion. Its amplitude of oscillation from the equilibrium (centered) position is +/- 7.86 cm and its mass is 1.684 kg. Find the maximum velocity of the poston |

## Find the magnitude of the resulting magnetic fieldA sphere of radius R is uniformly charged to a total charge of Q. It is made to spin about an axis that passes through its center with an angular speed ω. Find the magnitude of the resulting magnetic field at the center of the sphere. |

## Find the equivalent resistanceA resistor is in the shape of a cube, with each side of resistance R . Find the equivalent resistance between any two of its adjacent corners. |

## What is the electric field at the locationQuestion: Field and force with three charges? What is the electric field at the location of Q1, due to Q 2 ? |

## What is the maximum displacement of the bridge deckWhat is the maximum displacement of the bridge deck? |

## What is the magnitude of the current in the wireWhat is the magnitude of the current in the wire as a function of time? |

## Introductory mechanics: dynamicsCalculate the smallest coefficient of static friction necessary for mass A to remain stationary. |

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