Q1. A uniformly accelerating train passes a green light signal at km hr it passes a second light 125m farther down the track 0s later what is the trains acceleration? What is the train's velocity at the second light?

Q2. A 115kg fullback runs at the line of scrimmage.

(a) Find out the constant force that must be exerted on him to bring him to rest in a distance of 1.2 m in a time interval of 0.20 s.opposite the fullback's direction of motion

(b) How fast was he running at first?

What are the x and y components of each vector : A computer is reading data from a rotating CD-ROM. At a point that is 0.030m from the center of the disk, centripetal acceleration is 120m/s2. What is the centripetal acceleration at a point that is 0.05 m from the center of disc. |

What coordinate on x axis is the electric field produced : A passenger train is travelling at 31 m/s when the engineer sees a freight train 351 m ahead of his train travelling in the same direction on the same track. The freight train is moving at a speed of 5.6 m/s. |

What will the period of oscillation of the object : An object that hangs form the ceiling of a staionary elevator by an ideal spring scilliates with a period T. If the elevator accelerates upward 2g , what will the period of oscillation of the object ? |

How far away did the shell hit : A ball is thrown upward at a speed v0 at an angle of 50.0° above the horizontal. It reaches a maximum height of 7.5 m. How high would this ball go if it were thrown straight upward at speed v0. |

How fast was he running at first : Find out the constant force that must be exerted on him to bring him to rest in a distance of 1.2 m in a time interval of 0.20 s.opposite the fullback's direction of motion. |

Find the period of oscillation : The quartz crystal in a digital watch has a frequency of 32.8 kHz. What is its period of oscillation? |

Find out the amount of time the shell is in motion : One mole of an ideal gas is heated so that T = AP2, where A is a constant and P is the pressure. The temperature changes from T0 to 4T0. Find out the work completed by the gas. (Use the following as necessary: T0, P0, and V0.) |

A race car can be solved with a constant acceleration : If the car is going 55m/s, how many meters will it travel before it stops? How many meters will it takes to stop car going twice as fast. |

Find the acceleration of the object : An object is oscilliating on a spring with a period of 4.60 s . At time t= 0.00 s the object has zero speed and is at x = 8.30 cm . What is the acceleration of the object at t= 2.50 s ? |

## What is the total mass of the wirePotassium iodide has an interplanar spacing of d = 0.296 nm. A monochromatic X-ray beam shows first-order diffraction maximum while the grazing angle is 7.8°. Compute the X-ray wavelength λ . |

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## What is the maximum accelerationHeather and Jerry are standing on a bridge 56 above a river. Heather throws a rock straight down with a speed of 15. Jerry, at accurately the same instant of time, throws a rock straight up with the equal speed. Overlook air resistance. |

## The effective spring constant stiffness constantA potter's wheel having a radius 0.55m and a moment of inertia 12kg•m2 is rotating freely at 51 rev/min. The potter can stop the wheel in 7 s by pressing a wet rag against the rim and exerting a radially inward force of 67N. Find out the effectual co.. |

## Describe and explain relationship between vt and b2A conducting rectangular loop of mass M, resistance R, and dimensions w by l falls from rest into a magnetic field. All through the time interval before the top edge of the loop reaches the field, the loop approaches a terminal speed vT. |

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