When the power is turned off on a turntable spinning at 82.0 rpm, you find that it takes 10.8 revolutions for it to stop while slowing down at a uniform rate. What is the angular acceleration (in rad/s^2), of this turntable? How long does it take to stop after the power is turned off?

Estimate the cross-sectional area of the water stream : Water flows straight down from an open faucet. The cross-sectional area of the faucet is 1.7 × 10-4m2, find the cross-sectional area of the water stream at a point 0.11 m below the faucet |

What was the average power output of this magnetar : On December 27, 2004, astronomers observed the greatest flash of light ever recorded from outside the solar system. what was the average power output (in terms of P) of this magnetar |

Determine the direction of the net force on the car : A car with a mass of 1300 kg decreases its forward speed from 22 m/s to 14 m/s in 4.0 seconds. What are the magnitude and direction of the net force on the car |

Find the normal force between the ball and the wall : a spherical ball hanging on a string on a smooth, frictionless wall. The mass of the ball is m, its radius is R, and the length of the spring is L. Find the normal force between the ball and the wall |

Find how long does it take to stop after power is turned off : When the power is turned off on a turntable spinning at 82.0 rpm, you find that it takes 10.8 revolutions for it to stop while slowing down at a uniform rate. How long does it take to stop after the power is turned off |

Determine what was the angular velocity of the wheel : Emilie's potter's wheel rotates with a constant 2.90 rad/s^2 angular acceleration. What was the angular velocity of the wheel at the beginning of the 3.70 s interval |

Calculate the magnitude of impulse exerted on the clay ball : A superball and a clay ball are droped from a height of 10 cm above a table top. They have the same mass 0.05 kg and the same size. The superball bounces off the table and rises back to the same height. The clay ball sticks to the table. For the clay.. |

Final speed of the box after sliding across rough section : A box of unknown mass is sliding with an initial speed vi = 5.90 m/s across a horizontal frictionless warehouse floor when it encounters a rough section of flooring d = 2.10 m long. The coefficient of kinetic friction between the rough section of .. |

Calculate the density of the wood and oil : A block of wood with volume V floats in water with 0.70V submerged. In oil the block floats with 0.85V of its volume submerged. calculate the density of the wood and oil |

## What is his total displacment during the entire tripA physics instructor drives down to St. Louis to see his mom. On the way there, he travels the first half of the time at 60.0 km/hr and the second half the time at 95.0 km/hr. What is his total displacment during the entire trip |

## Determine the average distance of comet halleyComet Halley has an orbital perios of 75 years and when it enters the inner Solar System, it passes within a few AU of the Sun. Determine the average distance of Comet Halley |

## Determine the charge on the plate after immersionA parallel plate capacitor in air has a plate separation of 1.5 cm and a plate area of 25 cm^2. Determine the charge on the plate after immersion |

## What is its speed at any time after it is releasedFour equal charges, q=4.35C, of mass m 4.35kg are at the corner of a square of side L=0.0237m. If an equivalent charge of the same mass is placed at the origin, what is its speed at any time after it is released |

## What is the current flowing in the primaryThree charges, +q, +2q, and +4q, are linked by strings (Assume that the middle charge is fixed in space and the other 2 charges are held there by the tension alone.) |

## How much heat is transferred to the environmentIn a closed but uninsulated container, 500g of water is shaken until it's temperature increases by 3 degrees Celsius. How much heat is transferred to the environment during the process |

## How far away will the target need to beAngry Bird is launched horizontally with a slingshot with a speed of 6.07 m/s. how far away will the target need to be |

## Explain how much ice must melt in order to cool hot waterIf 40 g of hot water at 80°C is poured into a cavity in a very large block of ice at 0°C, what will be the final temperature of the water in the cavity? Explain how much ice must melt in order to cool the hot water down to this temperature? |

## Estimate the period of its simple harmonic motiona mass-spring system has k=54.4 N/m and m=0.465kg. Find the period of its simple harmonic motion and Find the frequency of its simple harmonic motion |

## Q1 a ball is dropped from rest at a height of 80 m aboveq1. a ball is dropped from rest at a height of 80 m above the ground.a. what is its speed as it hits the ground?b. how |

## Determine the spheres rotational inertiaA hollow sphere has a mass of M = 8.00 kg and a radius of R = 60.0 cm. Determine the sphere's rotational inertia about an axis that is tangent to the OUTER surface of the sphere |

## What are the amplitude speed and period of the waveA simple harmonic oscillator is described mathematically by x=0.25 sin(4.2pt +0.54px), What are the amplitude, speed and period of the wave |

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