A 2kg ball moving east with a speed of 3m/s collides with another 3kg ball moving west with a speed of 4m/s . After the collision the two balls stick together. Find the velocity (magnitude and direction) of the balls just after the collision.

Determine the balls initial speed : A ball is thrown horizontally from the top of a tower 30m high and lands 15m from its base. What is the ball's initial speed |

Find the expression that correctly represent discrete signal : A continuous time system has an output, y, which is given by y= 4sin( 4t+ f /2). It is sampled at a frequency of 4/f Hz. Determine the expression that correctly represent the discrete signal obtained after sampling and its value for n = 1 |

What alternative would be chosen : If the probability of Nature 1 is .40 and the probability of Nature 2 is 0.6, which alternative should be chosen? |

Determine the break-even quantity : An investment proposal will have annual fixed costs of $60,000, variable costs of $35 per unit of output, and revenue of $55 per unit of output. |

Find the velocity of the balls just after the collision : A 2kg ball moving east with a speed of 3m/s collides with another 3kg ball moving west with a speed of 4m/s . After the collision the two balls stick together |

Find the displacement from dallas to chicago : A map suggests that Atlanta is 730 miles in a direction 5.00Â° north of east from Dallas. Modeling the Earth as flat, use this information to find the displacement from Dallas to Chicago |

Explain how many hydrogen atoms are resent in surctose : the compound sucrose is commonly known as table sugar. the chemical formula of sucrose is C12H22O11. How many hydrogen atoms are resent in 1.50 x 10^-4 mol of sucrose |

What is the probability that a warning would be given : A hospital has three independent fire alarm systems, with reliabilities of 0.95, 0.97, and 0.99. In the event of a fire, what is the probability that a warning would be given? |

Discuss the sequence of actions that occur in the operation : Discuss the sequence of actions that occur in the operation of an automatic washing machine. Indicate which actions are time-driven and which actions are event-driven. |

## Elucidate is it possible to place a proton somewhereA charge of −1 Coulomb is placed at the 100-cm mark of the same meter stick. Elucidate is it possible to place a proton somewhere on the meter stick so that the net force on it due to the two charges is 0? |

## Determine the direction of the fourth displacementA spelunker is surveying a cave. She follows a passage 150m straight west, then 230m in a direction 45, Use a scale drawing to determine the magnitude of the fourth displacement, Determine the direction of the fourth displacement |

## What is the change in internal energy for processAn engine goes through the following cycle with 2.20 sample of a diatomic gas. I. an isothermas expansion from point a to point b. II. a constant pressure compression from point b to point c. III. |

## What is the magnitude of the force on the beadWhat is the magnitude of the force on the bead. find the charge of the particle. |

## Determine the resultant displacement graphicallydetermine the resultant displacement graphically.what is the magnitude of repulsive force pushing these two spheres apart. |

## What is the ratio of the magnitude of e2 to e1A proton is released from rest inside a region of constant, uniform electric field E1 pointing due North. 29.8 seconds after it is released, What is the ratio of the magnitude of E2 to the magnitude of E1 |

## Find the angular speed and the linear speed of each childTwo identical point charges (q = +6.90 x 10-6 C) are fixed at opposite corners of a square whose sides have a length of 0.45m. A test charge (q0 = -3.20 x 10-8 C), with a mass of 5.20 x 10-8 kg, is released from rest at one of the corners of the s.. |

## Explain what is the change in frequencyAt a factory, a noon whistle is sounding with a frequency of 480-Hz. As a car travelling at 79 km/h approaches the factory, the driver hears the whistle at frequency fi. After driving past the factory. |

## What are the displacement and velocity of point on cordWhat are the displacement and velocity of the point on the cord. What is the magnitude of the acceleration of one of the liners toward the other because of their mutual gravitational attraction. |

## The magnitude of the angular momentum of the systemA father (m = 70 kg) and son (m = 45 kg) are standing facing each other on a frozen pond. The son pushes on the father and finds himself moving backward at 3 m/s after they have separated. How fast will the father be moving. |

## What speed does truck after that strike the treeA 2kg lunchbox is sent sliding over a frictionless surface, in positive direction of an x axis along the surface. Start at time t = 0, steady wind pushes on the lunchbox in the negative direction of the x axis. |

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