A professional golfer is examining a video of a practice swing. The high-speed footage shows that his club is in contact with the ball (which was initially at rest on the tee) for only 0.471 milliseconds, and the radar gun clocks the speed of the ball as 131 mph after it comes off the club. The golf ball has a mass of 45.9 grams. What is the magnitude of the impulse imparted to the ball by the club? What is the magnitude of the average force of contact between the club and the ball?

Evaluate the concentration of each substance : Calculate the concentration of each substance when mixing 40.0 mL of 0.1 M CH3COOH and 10.0 mL of 0.1 M CH3COONa |

Compute the magnitude of the force of friction : Suppose a slide similar to Der Stuka is 38.8 meters high, but is a straight slope, inclined at 45° with respect to the horizontal. Find the magnitude of the force of friction |

Compute what is the height of the final image : A converging lens with a focal length of 17.9 cm and a diverging lens are placed 26.0 cm apart, with the converging lens on the left. What is the height of the final image |

Evaluate the heat released and delta h of vaporization : Calculate the heat released when 72.0g of steam at 131C is converted to water at 44.0C. Assume that the specific heat of water is 4.184J/gC, the specific heat of steam is 1.99J/gC and delta H of vaporization is 40.79kJ/mol for water. |

Average force of contact between the club and the ball : A professional golfer is examining a video of a practice swing. The high-speed footage shows that his club is in contact with the ball (which was initially at rest on the tee) for only 0.471 milliseconds, and the radar gun clocks the speed of the .. |

Determine how far will the boat move : Two people, one of mass 75 and the other of mass 65 , sit in a rowboat of mass 89. How far will the boat move |

A wheel is rotating about an axis : A wheel is rotating about an axis that is in the z-direction. The angular velocity is at , increases linearly with time and is at . We have taken counterclockwise rotation to be positive. |

Find the final speed of both pucks : Two pucks, A and B, are on an air hockey table. Puck A is moving with an initial velocity of 5.5m/s Eastward and Puck B is at rest and East of Puck A. Find the final speed of both pucks |

Explain the molar solubility in water be the same as hcl : For which of the following substances will the molar solubility in water be the same as that in an HCl or NH3 solution |

## Determine the radial speed of the needleThe outer edge of the grooved area of a long-playing record is at a radial distance 35 cm from the center; What is the radial speed of the needle |

## What is the absolute pressure in the tankAn open-tube mercury manometer is used to measure the pressure in an oxygen tank. When the atmospheric pressure is1140mbar, what is the absolute pressure (in Pa) in the tank if the height of the mercury in the open tube is26.0cm higher than the mer.. |

## Determine total distance coveredA subway train starts from rest at a station and accelerates at a rate of 1.50m/s2 for 14.2s. find total distance covered |

## Determine the initial charge on the capacitorA 6x10^-6 F capacitor is initially charged to 100V, then is connected across a 500Ohm resistor. What is the initial charge on the capacitor |

## What is the change in kinetic energy of the electrontwo parallel plates are separated by a distance of 25mm. the potential difference across the plates is 500v, what is the change in kinetic energy of the electron in electron volts |

## A sports car moving at constant speedBelow are birds-eye views of six identical toy cars moving to the right at 2? Various forces act on the cars with magnitudes and directions indicated below. All forces act in the horizontal plane and are either equivalent or at 45 or 90 degrees to ca.. |

## Determine density of the planetA satellite is in a circular orbit very close to the surface of a spherical planet. What is density (mass/volume) of the planet |

## What is the change in total entropy deltaAn aluminum bar of mass 2.00kg at 300 C is thrown into a lake. The temperature of the water in the lake is 15.0 C; what is the change in total entropy Delta |

## Find the wavelength of the laserLight from a laser strikes a diffraction grating that has 4250 grooves per centimeter. Find the wavelength of the laser |

## What is the displacement of the particleA particle of charge +15 µC and mass 2.00 10-5 kg is released from rest in a region where there is a constant electric field of +280 N/C |

## Calculate the orbital frequency of the electronIn the Bohr model of the hydrogen atom the electron orbits the proton in a circular orbit. Calculate the orbital frequency of the electron |

## What is the total distance it travels during the intervalAn object moves with constant acceleration 4.20 m/s2 and over a time interval reaches a final velocity of 11.0 m/s. What is the total distance it travels during the interval |

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