Two point charges of equal mass start from rest.

a. What is the distance between the charges?

b. How long will it take the charges to move?

How high can the hump be made without backing flow up : A smooth hump is placed in the bottom of the channel. What would be the depth of flow over a 3 ft high jump. How high can the hump be made without backing flow up What would be the depth of flow over and just upstream of a 6 ft high jump |

What is the speed of the moving cart before the collision : A 206 kg cart runs into the rear end of a 102 kg cart that is stationary. What is the speed of the moving cart before the collision |

Compute the present value of this stream of income : Now compute the present value of the income stream from the gold mine at a discount rate of 6%, and at a discount rate of 4%. |

What are the cash flows to tom under each scenario : The company needs a cash infusion of $1.5 million, and it can issue equity or issue debt with an interest rate of 9 percent. Assume there are no corporate taxes. |

Evaluate the distance between the charges : Two point charges of equal mass start from rest. What is the distance between the charges and How long will it take the charges to move |

Determine the dimensions of an ideal circular settling tank : determine the dimensions of an ideal circular settling tank that can remove 0.01-in diameter particles with a specific gravity of 1.01. Use a detention time of 1.5 hours, flowrate= 4ft^3/sec, the specific weight of water=62.4 lb/ft^3 |

Determine what should be the removal efficiency : The regulatory agency has told the company to maintain a salt level pf no greater then 250 mg/L downstream of the discharge. what should the removal efficiency. (percentage of the salt removed) of a process designed to remove salt from the waste w.. |

What is the contribution margin per occupied room : Average room rates are $110 per night. What is the contribution margin per occupied room? In answering this question, use your variable cost estimate from Part B. |

Calculate how much work does she do : If you are going to do this, please show your work!! DO NOT just give an answer. A woman lifts a 2.00-kg weight held in her hand. find how much work does she do |

## Find the mass of the diskA uniform disk of radius 0.459 m and unknown mass is constrained to rotate about a perpendicular axis through its center. Find the mass of the disk |

## What is her speed as she passes himDavid is driving a steady 28.0m/s while he passes Tina, who is sitting in her car at rest. Tina begins to accelerate at a steady 2.70 at the instant when David passes. How far does Tina drive before passing David. |

## What is the direction of the velocity of this atomA review of the basics of circular motion: The radius of a merry-go-round is 5 meters, and it takes 12 seconds to go around once. What is the direction of the velocity of this atom |

## Determine the angular displacement of the baseballA pitcher throws a curveball that reaches the catcher in 0.55 s. What is the angular displacement of the baseball as it travels from the pitcher to the catcher |

## What are direction and magnitude of total velocityWhat are direction and magnitude of total velocity |

## Find the total electric potential at origintwo point charges are on the y axis. A 3.50 uc charge is located at y=1.1cm, and a -2.16 uc charge at y=-1.4cm. find the total electric potential at origin in volts |

## Find the maximum acceleration achieved by the sphereTwo plastic spheres, each carrying charge uniformly distributed throughout its interior, are initially placed in contact and then released, Find the maximum acceleration achieved by the sphere of mass 55.0g |

## Calculate the x component of the velocityWhat is the greatest distance foot of the ladder can be placed from the base of the wall without the ladder immediately slipping. |

## What is the wavelength in vacuum of these x-raysIn a dentist's office, an X-ray of a tooth is taken using X-rays that have a frequency of 8.07 multiply.gif 1018 Hz |

## What is the ratio of the new force to the old forceA 40 cm diameter wheel accelerates uniformly from 240 rpm to 360 rpm in 6.5 s. how far will a point on the edge of the wheel have traveled in this time. what is the ratio of the new force to the old force. |

## Calculate the mean kinetic energy of a moleculeSuppose molecules of an ideal gas are escaping by effusion through a small hole in a wall of an enclosure maintained at temp T. Calculate the mean kinetic energy of a molecule in the effusion beam Ue |

## What is the thinnest film of on glassIf the ball's speed just before impact is 100 m/s, what is the angular speed of the rod immediately after the collision. |

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