A beam of electrons is accelerated through a potential difference of 10 kV before entering a region having uniform electric and magnetic fields that are perpendicular to each other and perpendicular to the direction in which the electron is moving. If the magnetic field in this region has a value of 0.010 T, what magnitude of the electric field is required if the particles are to be undeflected as they pass through the region?

According to the definition of work : According to the definition of work, the work done by an external force in moving a heavy crate along a horizontal surface should be the same whether the force is pulling upward at a 45 degree angle or pushing downward at a 45 degree angle. In practi.. |

Solid uniform spherical boulder rolls down the hill : A solid uniform spherical boulder rolls down the hill as shown in the figure(Figure 1) , starting from rest when it is H = 43.0{\rm m} above the bottom. The upper half of the hill is free of ice, so the boulder rolls without slipping. But the lower h.. |

Two blocks are connected by a light cord : Two blocks are connected by a light cord. One block, of mass 4kg, sits on a horizontal table with static and kinetic coefficients of friction of 0.6 and 0.4, respectively, whereas the other block, of 2 kg mass, hangs over a frictionless light pull.. |

Calculate magnitude-direction of magnetic field in region : In Figure 20.12, a small particle of charge q = -7.0 x 10^-6 C and mass (m = 3.1x10^-12) has velocity (Vo = 9.4x10^3 m/s) as it enters a region of uniform magnetic field. The particle is observed to travel in the semicircular path shown, with radius .. |

Beam of electron is accelerated through potential difference : A beam of electrons is accelerated through a potential difference of 10 kV before entering a region having uniform electric and magnetic fields that are perpendicular to each other and perpendicular to the direction in which the electron is moving. I.. |

Two blocks are attached by a light string : Two blocks are attached by a light string with one resting on a rough table and the other hanging over the edge via a frictionless pulley. If the blocks are initially at rest, the tension force is equal to the hanging weight. |

Magnitude of the electric field inside this metal filament : The tungsten filament in the 36 ohm bulb is 8 mm long and has a cross-sectional area of 2e-10 m^2. What is the magnitude of the electric field inside this metal filament? |

What is the maximum stretch during the motion : A horizontal spring-mass system has low friction, spring stiffness 200 N/m, and mass 0.4 kg. The system is released with an initial compression of the spring of 11 cm and an initial speed of the mass of 3 m/s. |

What is the magnitude of the larger of the two resistances : When a 32.0-V emf device is placed across two resistors in series, a current of 11.0 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 56.0 A. Wh.. |

## Find the combined kinetic energyTwo insulated spheres have radii r1 and r2, and charges q1 and q2, What is their combined kinetic energy when they collide, in terms of the variables above, and k the constant in Coulombs Law |

## Questiona rectangular loop has 85 turns with an area ofquestiona rectangular loop has 85 turns with an area of 0.225 m2 and lies in a uniform magnetic field of 0.28 t. |

## What is the angular velocity of the diskWhat is the angular velocity of the disk. If a single bit requires 5 µm of length along the motion direction, how many bits/second can the writing head write when it is 3.0 cm from the axis? display all work and explanations. |

## Question1a charged particle is fired into a cubical regionquestion1a charged particle is fired into a cubical region of space where there is the uniform magnetic field. outer |

## Determine where should the object be placedA convex spherical mirror, whose focal length has a magnitude of 15.2 cm, is to form an image 10.4 cm behind the mirror. where should the object be placed |

## What is the potential energy of the systemA solid, rectangular iron bar measures .40cm by 1.0cm by 30cm. Find the resistance between each of the three pairs of opposing faces, assume the faces in question are quipotentials. |

## What is keplers first lawWhat is Kepler's First Law and in this experiment, there are eight pairs of photographs. In each pair, what things are the same in each? What things are different? |

## Determine the velocity of the particle as a function of timeA particle starts from the origin with velocity 5 m/s at t = 0 and moves in the xy plane with a varying acceleration given by = (8t), Determine the velocity of the particle as a function of time |

## What is your average speed for the entire tripSuppose you decide to take a trip in your car today. You start out and drive 32 miles in 20 minutes, What is your average speed for the entire trip including when you were parked |

## Calculate how many wavelengths are there in one pulseA certain type of laser emits light that has a frequency of 6.0 × 1014 Hz. The light, however, occurs as a series of short pulses, each lasting for a time of 2.8 × 10-11 s. How many wavelengths are there in one pulse |

## What is the potential difference across the first capacitorA 13? F capacitor is joined in series with a 35? F capacitor, What is the potential difference across the first capacitor |

## What is the second force that acts on the objecta 1.0 kg object is moving with a constant velocity 2.0 m/s toward the north. what is the second force that acts on the object |

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