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 pulley. The blocks are released from rest. (a) Draw a carefully labeled free body diagram for both blocks and, by using Newton's laws, show that they do not move. (b) If the two blocks are exchanged, so that the 4 kg is now the hanging block and the 2 kg sits on the table, find their acceleration now. (c) In words, state why the tension in the cord is equal to the weight of the hanging block in part(a) but not in part(b). (d) What is the minimum mass that one needs to add to the 2 kg block in part(b) for it to remain at rest when released?

What angle will the second order peak occur : A diffraction grating with 280 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 400.0 nm? At what .. |

Two straight wires run parallel to each other : Two straight wires run parallel to each other, each carrying a current in the direction shown below. The two wires experience a force in which direction? B) What happens when one of the currents is turned off? |

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? |

## Calculate the magnitude of the net forceA water molecule, which is electrically neutral but has a dipole moment of magnitude p = 6.20·10-30 C m, is 3.20 cm away from a point charge q = +6.90 ?C, Calculate the magnitude of the net force |

## Compute magnitude and direction of magnetic fieldCompute magnitude and direction of magnetic field produced by the moving belt at a point just above its surface . |

## How far away is the mountain that reflected the sound waveLanding on the Moon, a spacecraft fires its retrorockets and comes to a complete stop just 19m above the lunar surface. It then drops freely to surface.How long does it take to fall in seconds? What is its impact speed in meter per seconds. |

## How is the speed of the plane across the ground affectedAn airplane's speed across the ground can be affected by the wind. how is the speed of the plane across the ground below affected |

## How far will a point on the edge of the wheel have traveledA wheel 33 cm in diameter accelerates uniformly from 240 rpm to 360 rpm in 6.5 s. How far will a point on the edge of the wheel have traveled in this time |

## A sinusoidal wave traveling in the positive x-directionA sinusoidal wave traveling in the positive x-direction has a wavelength of 11 cm, a frequency of 13 Hz, and an amplitude of 19 cm. The part of the wave that is at the origin at t = 0 has a vertical displacement of 6 cm. For this wave, determine the .. |

## What is the voltage drop across given resistorThis question requires three answers. Three resistors are connected in parallel with a 9.0 V battery. What is the voltage drop across R2 |

## How far is the ball horizontally from the basketA basketball player has free throws from the foul line. The center of the basket is a horizontal distance of 4.21 m from the foul line and is a height of 3.05 m above the floor. At the maximum height, how far is the ball horizontally from the baske.. |

## What was the initial speed given to the rockwhat was the initial speed given to the rock. A light plane is headed due south with the speed of 154 km/h relative to still air. After 1.06 hour, the pilot notices that they have covered only 127km and their direction is not south but southeast (4.. |

## Find the range of frequency of light emitted by hydrogenatomWhat is the range of frequency of the light emitted by the hydrogen atom |

## Question1astronomers detect a large asteroid that far awayquestion1astronomers detect a large asteroid that far away but still heading toward earth at 754 ms. a straight |

## What is the equivalent dosage of the radiation exposurea 57 kg researcher absorbs 6.3*10^8 neutrons in a workday. The energy of the neutrons is 2.6 MeV. What is the equivalent dosage of the radiation exposure |

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd