The coefficients of kinetic and static friction between a 1000 lb refrigerator and flor are .4 and .45. when at rest the refrigerator is pushed with a horizontal force of 300 lb. what is the force of friction between the fridge and the floor?

What is the amplitude of the oscillation : An air-track glider is attached to a spring. The glider is pulled to the right and released from rest at =0 . It then oscillates with a period of 1.50 and a maximum speed of 58.0 . A What is the amplitude of the oscillation? B What is the glider's po.. |

Magnitude of the electric field at the center of semicircle : There is a uniform charge distribution of ? = 8.12 10-8 C/m along a thin wire of length L = 5.94 cm. The wire is then curved into a semicircle that is centered about the origin, so the radius of the semicircle is R = L/?. Find the magnitude of the el.. |

Imagine sitting on a steadily spinning merry-go-round : Imagine sitting on a steadily spinning merry-go-round, neither speeding up nor slowing down. Like all physics students, you have an identical twin, and your twin is sitting on the merry-go-round, but closer to the center than you. Which of you, if ei.. |

Determine the force exerted by air resistance on the bucket : A fire helicopter carries a 520-kg bucket of water at the end of a 20.0-m long cable. Flying back from a fire at a constant speed of 40.0 m/s, the cable makes an angle of 36.0° with respect to the vertical. Determine the force exerted by air resistan.. |

What is the force of friction between the fridge and floor : The coefficients of kinetic and static friction between a 1000 lb refrigerator and flor are .4 and .45. when at rest the refrigerator is pushed with a horizontal force of 300 lb. what is the force of friction between the fridge and the floor? |

Find the frictional force acting on the block : A 3.00-kg block starts from rest at the top of a 33.5° incline and slides 2.00 m down the incline in 1.80 s. (a) Find the acceleration of the block. m/s2 (b) Find the coefficient of kinetic friction between the block and the incline. (c) Find the fri.. |

Consider a frictionless track : Consider a frictionless track. A block of mass m1=10.0kg is released from A, at a height h=17.0m. It makes a head-on elastic collision at B with a block of mass m2=22.0kg that is initially at rest. Calculate the maximum height to which m1 rises after.. |

Telephone customer service representatives : How do you interpret the reliability results for the clerical test and work sample? Are they favorable enough for Phonemin to consider using them "for keeps" in selecting new job applicants? |

Explain how many photons must be absorbed to make h2o boil : A certain microwave delivers 750. watts (J/s) of power to a coffee cup containing 50.0 g of H2O at 25 degrees C. if the wavelength of microwave in oven is 9,75 cm how long does it take and how many photons must be absorbed to make H2O boil |

## How deep is the canal at this pointAt a point where an irrigation canal having a rectangular cross section is 18.3m wide and 3.70m deep, the water flows at 2.25cm/s. How deep is the canal at this point |

## Determine how far are you from the poleIf you hold a 400 cm^2 square plane mirror 43cm from your eyes and can just see the full length of an 8.1m falgpole behind you |

## Find the maximum magnification given by the lensA magnifying glass of focal length 150. mm is used to examine an old manuscript. What is the maximum magnification given by the lens |

## Find how many moles of gas are there in the containerA monatomic ideal gas in a rigid container is heated from 222 K to 304 K by adding 8560 J of heat |

## Find the linear density of this string in grams per meterThe equation of a transverse wave on a string is given by the formula below. Find the linear density of this string in grams per meter |

## Calculate the speed of the third piece of shrapnelAn artillery shell of mass 10.00 kg, lying at rest on the ground, accidentally detonates, exploding into three pieces of shrapnel. Calculate the speed of the third piece of shrapnel |

## What is the maximum compression of the barYou decide to drop a bar made of a steel cylinder (Y = 6.0 × 1010 Pa) from a height of 1.20 m, what is the maximum compression of the bar |

## Determine the ionization energy of hydrogenDetermine the ionization energy of hydrogen if the shortest wavelength in the Balmer series is found to be 3650 AO |

## Determine what is the width of the slithe diffraction pattern is viewed on a screen 55.5 cm from the slit. The distance on the screen between the third order minimum and the central maximum is 1.91 cm. What is the width of the slit |

## What is the speed of the fighter ship relative to earthA huge space cruiser passes earth at speed c/2. It launches a small fighter ship away from earth (thank goodness) at speed c/2 relative to the cruiser. What is the speed of the fighter ship relative to earth |

## How far west has the train traveledA train moving with constant velocity travels 190 north in 14s and an undetermined distance to the west. How far west has the train traveled |

## Calculate the work he does climbing the hillA boy of mass 50 kg runs up a hill of vertical height 300 m in 20 minutes. calculate the work he does climbing the hill |

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