Two particles each with charge +1.86 µC are located on the x axis. One is at x = 1.00 m, and the other is at x = ?1.00 m. (a) Determine the electric potential on the y axis at y = 0.320 m. .... kV (b) Calculate the change in electric potential energy of the system as a third charged particle of -3.28 µC is brought from infinitely far away to a position on the y axis at y = 0.320 m. ..... J

Calculate the average force exerted on the block : A 10 g bullet moving 1000 m/s strikes and passes through a 2.0-kg block initially at rest, as shown. The bullet emerges from the block with a speed of 400 m/s. (a) (5 pts) How much energy was lost in the collision? |

Emf device is placed across two resistors in series : When a 23.0-V emf device is placed across two resistors in series, a current of 14.0 A is flowing in each of the resistors. When the same emf device is placed across the same two resistors in parallel, the current through the emf device is 61.0 A. Wh.. |

What is the expansion coefficient of the combined rod : An aluminum rod 10.0cm long and a steel rod 80.0cm long are combined to form one rod with a total length of 90.0cm. The initial temperature of both rods is 15 degrees celcius. The expansion coefficient of aluminum is 2.4*10^5 and the expansion coeffi.. |

What is the magnitude of the centripetal acceleration : A discus thrower (with arm length of 1.2 m) starts from rest and begins to rotate counterclockwise with an angular acceleration of 1.8 rad/s2. (a) How long does it take the discus thrower's speed to get to 3.5 rad/s? |

Calculate the change in electric potential energy of system : Two particles each with charge +1.86 µC are located on the x axis. One is at x = 1.00 m, and the other is at x = ?1.00 m. (a) Determine the electric potential on the y axis at y = 0.320 m. .... kV (b) Calculate the change in electric potential energy.. |

Compare the probabilities for an oscillating particle : Compare the probabilities for an oscillating particle in its ground state to be found in a small interval of width dx at the center of the well and at the classical turning points. |

Friction between cannon and the ground : A cannon with a mass of 115 kg shoots a cannonball with a mass of 8 kg. If the speed of the cannon ball as it leaves the cannon is 185 m/s,what is the speed of the cannon at that time??(assume cannon is initially at rest,not fastened down in any way,.. |

What are the x n y component of their final velocity : An 80 kg hockey player is gliding down the ice with a velocity of 7.5 m/s in +ve x directon.he is hit by a defensive player of mass 105 kg ans an initial velocity of 4.5m/s in -ve y direction.if the players experience a completely inelastic collision.. |

Diffraction grating-what angle will second order peak occur : A diffraction grating with 300 lines per mm is used in an experiment to study the visible spectrum of a gas discharge tube. At what angle from the beam axis will the first order peak occur if the tube emits light with wavelength of 500.7 nm? At what .. |

## What time interval should the gyroscope be operatedTwo weights are connected by a very light flexible cord that passes over a 30 frictionless pulley of radius 0.100. The pulley is a solid uniform disk and is supported by a hook connected to the ceiling. One weight is 75N and the other is 125 N. |

## Find the acceleration due to gravity on surface of planetA probe from earth, with a mass of 10^6 kg, is in orbit aroun planet Pud in another solar system. find the acceleration due to gravity on the surface of the planet Pud |

## How fast are these protons movingProtons in cosmic rays have been observed with kinetic energies as large 2.70 × 108 eV. How fast are these protons moving |

## What is the frequency of the waveA steel band exerts a horizontal force of 76N on a tooth at point B. What is the torque on the root of the tooth about point A. |

## Determine the potential difference across each capacitorA 0.50-?F and a 1.4-?F capacitor (C1 and C2, respectively) are connected in series to a20-V battery, lculate the potential difference across each capacitor? V1 and V2 |

## Calculate the temperature rise from frictionA block that was initially at rest is sliding on a steel surface at 0.8 m/s for .2 m. Calculate the temperature rise from friction |

## Find the magnitude of the initial velocityA ball thrown into the air lands on the same horizontal level, 31 m away, and 2.6 s later. Find the magnitude of the initial velocity |

## How much time has elapsed on the astronauts chronometersA starship voyages to a distant planet 10 ly away. The explorers stay 1.0yr , return at the same speed, and arrive back on earth 26yr after they left. How much time has elapsed on the astronauts' chronometers |

## Find the shear modulus of the woodA plank 2.00 cm thick and 16.9 cm wide is firmly attached to the railing of a ship by clamps so that the rest of the board extends 2.00 m horizontally over the sea below, find the shear modulus of the wood |

## Determine the percentage lost by the windowA wall in a house contains a single window. The window consists of a single pane of glass whose area is 0.10 m2 and whose thickness is 7 mm. what is the percentage lost by the window |

## What is the absolute pressure of the air in the tireA motorist pulls into a gas station and uses a pressure gauge to check one of the tires on her car. What is the absolute pressure of the air in the tire |

## Find the total time the block is in motionA block slides down an inclined plane, starting from rest and being pushed with a constant acceleration of 5.20 m/s2 over a distance of 20.4 cm. Find the total time the block is in motion |

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