Is kinetic energy of a system conserved when two objects collide and stick together? What about the momentum of the system? What kind of collision is this (elastic or inelastic )? A ssume that a cement truck with a mass of 10,000 kg hits you while you were stopped at a traffic light, and that you are driving a Yugo with a mass of 750 kg. If the truck was traveling at 15 mph and the crash makes you stick together (you and the truck have the same final velocity), what is your final velocity? Ignore friction with the road.

Find its velocity and find its acceleration : An object moves according to x = 3 m e^(-2/s t), y = 4 m sin(3/s t), z = -5 m cos(3/st) . a. Find its velocity. b. Find its acceleration. Note: s is seconds ex:-2/s means -2 per second and m is meters |

Electron enters the region between two plates traveling : An electron enters the region between two plates traveling along the x-direction with a speed of v = 2.53x10^6 m/s. Both plates are parallel to the x-y plane and are separated by 3.2 cm. The potential of the top plate at z = 3.2 cm is +150 V while th.. |

What is the frequency of the light when it reaches earth : Most of the galaxies in the universe are observed to be moving away from Earth. Suppose a particular galaxy emits orange light with a frequency of 5.000 \times 10^{14} {\rm Hz}. If the galaxy is receding from Earth with a speed of 3725{\rm km/s} , wh.. |

Find head flux and temperature distribution-thickness window : A classroom window made of glass is 1cm thick. The window is 2m square . If the thermal conductivity of glass k = 0.96 w/(mK) and the temperature is 21C inside and 32C outside, find the head flux and the temperature distribution along the thicknes.. |

Kinetic energy of system conserved when two objects collide : Is kinetic energy of a system conserved when two objects collide and stick together? What about the momentum of the system? What kind of collision is this (elastic or inelastic )? |

A proton with an initial velocity : A proton with an initial velocity of (1.0x + 2.0y + 3.0z) x10^5 m/s enters a magnetic field of 0.50z T. Find the magnitude of the force on the proton. The mass of the proton is 1.67x10^-27 kg. The answer is 1.8x10^-14 N I think the equation you shoul.. |

Sliding on a rough horizontal surface : The mass m = 1.02 kg is sliding on a rough horizontal surface. A force F = 8.41 N is applied at an angle of 36.4 degrees. Compute the acceleration a (in m/s2) of the mass on the surface if the coefficient of kinetic friction is 0.112. Use g = 9.8 m/s.. |

Block to reach maximum amplitude after the collision : A block of mass 0.1 kg is attached to a spring of spring constant 11 N/m on a frictionless track. The block moves in simple harmonic motion with amplitude 0.13 m. While passing through the equilibrium point from left to right, the block is struck .. |

Typical number of heating degree days : Let us assume that the winter consists of 150 days in which the outside temperature is 0C. This will give the typical number of "heating degree days" observed in a winter along the northeastern US seaboard. |

## What are the radiuses of the baseball path curvatureA baseball is bunted down the third-base line leaving the bat from a height of 0.850m with an initial velocity of 4.00m/s at an angle of 37.87° above horizontal. |

## What is the change in potential energy of the coilA coil with magnetic dipole moment 1.5 A-m^2 is rotated initally with its magnetic moment parallel to a uniform magnetic field of 0.4T. what is the change in potential energy of the coil |

## Find focal length of the corresponding contact lensA near-sighted person's eyeglasses has a focal length of ? 22.0 cm, and the lens is 1.8 cm from the eye. If the person switches to contact lenses that are placed directly on the eye, what should be the focal length of the corresponding contact len.. |

## 1define a lie in the strict or formal sense2explain what is1.define a lie in the strict or formal sense.2.explain what is meant by communication?3.what is the principal purpose |

## Find how far does a knot on the string travelA 4.8 Hz wave with an amplitude of 12 cm and a wavelength of 27.0 cm travels along a stretched horizontal string. How far does a knot on the string travel in the same time interval |

## Find the ratio of the wave speedsTwo steel guitar strings have the same length. String A has a diameter of 0.59 mm and is under 450.0 N of tension. String B has a diameter of 1.2 mm and is under a tension of 800.0 N. Find the ratio of the wave speeds, va/vb, in these two strings. |

## Question1a race car starts from break on a circular trackquestion1a race car starts from break on a circular track of radius 463 m. the cars speed increases at constant rate of |

## Calculate the amount of voltage inducedA uniform magnetic field of 25 mT magnitude points in the direction of . Calculate the amount of voltage induced if measured at the ends of the wire |

## Determine the magnetic energy density of the waveThe magnetic field component of the electromagnetic wave is 15.0 ?T. What is the magnetic energy density of the wave |

## What is the tension in the cable?A car of mass 1,250 kg is lowered onto a junk pile at the end of the cable of a large crane. If the car is accelerating downward at 0.19 m/s2 |

## At what angle does the piece of mud drop off the wheelA car is moving with constant velocity v, and has wheels of radius R. At what angle does the piece of mud drop off the wheel |

## What is the sound frequency of the reflected waveA bat at flying east at 30 m/s sends out ultrasonic waves at 60kHz and receives them returned from an object moving east at 35.0 m/s, What is the sound frequency of the reflected wave as heard by bat |

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