Billy throws a ball straight up and it rises 22 meters into the sky. With what initial velocity must he have thrown the ball?

Compute the heat that must be supplied to carry out : Ten kg of steam at 500 bar is expanded at constant pressure until its pressure increases to seven times its initial value of 0.01 m^3. (a) Determine the initial and final temperature of the steam. (b) Calculate the heat that must be supplied to ca.. |

What would be the void ratio of the clay at the point : At a point in a saturated normally consolidated clay layer the soil is subject to an in-situ vertical effective stress of 50kPa. The soil at the point has a moisture content of 44% and a compression index of 0.45. |

What would be the power dissipated by the lamp : Bob connects a lamp of 34 Ohms resistance across a car battery of 12 volts. what would be the power dissipated by the lamp |

The alkenes can be converted into alcohols by acid-catalyzed : Alkenes can be converted into alcohols by acid-catalyzed addition of water. Assuming that Markovnikov's rule is valid, predict the major alcohol product from 2-methylbut-2-ene |

With what initial velocity must he have thrown the ball : Billy throws a ball straight up and it rises 22 meters into the sky. With what initial velocity must he have thrown the ball |

Explain how many hydrogens are in c13h?n : How many hydrogens are in C6H?NO3, which has 1 ring and 4 double bonds? How many hydrogens are in C13H?N, which has 4 rings and 6 double bonds? |

What particles make up the nucleus of an atom : An alpha particle has twice the charge of a beta particle. Why does the former deflect less than the later when passing between electrically charged plates, What particles make up the nucleus of an atom |

Compute the maximum non-expansion work : Calculate (a) the maximum non-expansion work, and (b) the maximum work that can be obtained from the freezing of supercooled water at -5 oC and 1.0 atm. |

Explain which of the bonding forces from the list above : Which of the bonding forces from the list above would need to be overcome to convert CCl4 from a liquid to a gas? (Enter the letters in order of all that apply, e.g. AB, ABD, ACDE, etc.) |

## At what average rate does the force from the cableAt what average rate does the force from the cable. A falling skydiver has a mass of 54.5 kg. What is the magnitude of the skydiver's acceleration when the upward force of air resistance has the magnitude that is equal to one-fourth of his weight. |

## At what angle should they be launchedTwo students with vibrating 440Hz tuning forks walk away from each other with equal speeds. How fast must they walk so that they each hear the frequency of 433 from the other fork. |

## Find the magnitude of the total acceleration of the trainA train is rounding a circular curve whose radius is 2.00 multiply.gif 102 m. Find the magnitude of the total acceleration (centripetal plus tangential) of the train |

## Determine the minimum thickness of a soap filmDetermine the minimum thickness of a soap film (n= 1.80) that will result in constructive interference of a specific red line with wavelength 610 nm |

## Determine the correct contact lens prescriptionA farsighted man uses eyeglasses with a refractive power of 2.10 diopters. Wearing the glasses 0.03 m from his eyes, What is the correct contact lens prescription |

## Which laser emits the higher-frequency lightAn astronaut on the Mars attaches a small brass ball to a 1.00- length of string and makes a simple pendulum. She times 13 complete swings in a time of 35.4 seconds. From this measurement she calculates the acceleration due to gravity on the Mars. |

## What is the mutual inductance of combination of two coilsResolve the position s_b of the image if an object is placed in air on the axis of the rod 16.00 cm to the left of the end of the rod. |

## What is the slit separationAt what distance along the central axis of a ring of radius 1.8 cm and uniform charge 66 C is the magnitude of the electric field maximum. |

## What horizontal distance does it cover throughout its flightWhile the dried up seed pod of a scotch broom plant bursts open, it shoots out a seed with an initial velocity of 2.4 m/s at an angle of 60° above the horizontal. |

## Estimate the velocity of the gas as it leaves the nozzleIf it takes you about 2 minutes to fill your 12 gal (or 0.48 m3) gas tank. Estimate the velocity of the gas as it leaves the nozzle |

## Find molar specific heat at constant pressureA certain ideal gas has a molar specific heat at constant volume CV = 7R/5. What is its molar specific heat at constant pressure |

## Find the focal length of the eyeglassesA farsighted person has a near point that is 48.0 cm from her eyes. Find the focal length of the eyeglasses |

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