At a certain distance, the sound intensity level of a dog's bark is 43 dB. At that same distance, the sound intensity of a rock concert is five thousand times that of the dog's bark. What is the sound intensity level of the rock concert?

Calculate the resulting increase in the springs mass : A spring with a force constant of 588N/m is compressed a distance of 42cm. Find the resulting increase in the spring's mass |

Explain the diluted solution contains cucl2 : To what volume should you dilute 122 mL of an 8.05 M CuCl2 solution so that 51.0 mL of the diluted solution contains 4.61 g CuCl2 |

Determine the density of the glycerin : A plastic sphere floats in water with 65.0% of its volume submerged. This same sphere floats in glycerin with 51.6% of its volume submerged. Determine the density of the glycerin |

Compute the mass of nitrogen dissolved at room temperature : Calculate the mass of nitrogen dissolved at room temperature in an 93.0 home aquarium. Assume a total pressure of 1.0 and a mole fraction for nitrogen of 0.78. |

What is the sound intensity level of the rock concert : At a certain distance, the sound intensity level of a dog's bark is 43 dB. What is the sound intensity level of the rock concert |

Explain the max kinetic energy the released electrons : 208.4 kj of energy removes one mole of electrons from the atoms on the surface of rubidium metal; if rubidium is irradiated with 254-nm light, what is the max kinetic energy the released electrons will have |

Explain the energy of a single uv photon : What is the energy of a single UV photon and mole of UV photons having a wavelength of 25 nm |

Explain how would you prepare 3-methylheptane : How would you prepare 3-methylheptane beginning with either 2-bromobutane or 1-bromobutane |

What is the speed of the target proton after the collision : A projectile proton with a speed of 500 m/s collides elastically with a target proton initially at rest. What is the speed of the target proton after the collision |

## Obtain the temperature changeA lead bullet with a mass of 0.02 kg traveling at 209 m/s strikes an armor plate and comes to a stop. what is the temperature change |

## Find the gravitational potential energyA 43.0-N child is in a swing that is attached to ropes 1.60 m long. Find the gravitational potential energy associated with the child relative to her lowest position at the following times. |

## Find the speed of a protonAn electron has a speed of 0.750c. Find the speed of a proton that has the same kinetic energy as the electron |

## Find the vertical component of the pushA warehouse worker pushes a crate along the floor, by a force of 7.0{\rm N} that points downward at an angle of 45^\circ below the horizontal.Find the horizontal component of the push. Find the vertical component of the push. |

## Find the acceleration of the rocketA 125-kg (including all the contents) rocket has an engine that produces a constant vertical force (the thrust) of 1720 N. Inside this rocket, Find the acceleration of the rocket |

## A 9.22 kg ball, hanging from the ceilingA 9.22 kg ball, hanging from the ceiling by the light wire 145.00 cm long, is struck in an elastic collision by a 1.20 kg ball moving horizontally at 6.46 m/s just before the collision. |

## What is the volume of the bubble as it breaks the surfaceA 1.00 liter bubble of air at the bottom of the Marianas Trench has an inital temperature of about 0C. what is the volume of the bubble as it breaks the surface |

## Determine what is the mans massA man stands on a scale in an elevator that is accelerating upward. The scale reads 839.7 N. What is the man's mass |

## How far does the jumper jumpA jumper in the long-jump goes into the jump with a speed of 12 m/s at an angle of 20 deg. above the horizontal. How far does the jumper jump? |

## How much additional charge flows to the positive plateAn uncharged capacitor is connected to the terminals of a 2.0V battery, and 9.0?C flows to the positive plate, How much additional charge flows to the positive plate |

## Obtain the change in kinetic energy of the crateA crate of mass 11.5 kg is pulled up a rough incline with an initial speed of 1.50 m/s. The pulling force is 100 N parallel to the incline, What is the change in kinetic energy of the crate |

## Find the final image distance relative to the lensTwo identical diverging lenses are separated by 15 cm. The focal length of each lens is -8.0 cm. Determine the final image distance relative to the lens on the right |

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