Place a 2kg textbook against a vertical wall and press on it with a force of 40 N. If the coefficients of friction are 0.35 and 0.25, determine the acceleration of the textbook.

## Establish the volume of the kettleA 275 ball is tied to a string. It is pulled to an angle of 4 and released to swing as a pendulum. A student with a stopwatch finds that 17 oscillations take 20. |

## Describe the its motionA permanent magnet is hung from a string ( balanced ) and pointed in an East - West orientation and released. Describe its motion |

## Calculate the net radiation flux from the road to the airOn a hot day, the temperature of a road surface may rise to over 50 degrees C. calculate the net radiation flux from the road to the air |

## Compute the width of the central maximumLight of wavelength 560 nm illuminates a single 0.77 mm wide slit. At what distance from the slit should a screen be placed, What is the width of the central maximum |

## What total charge passes through the wire in time intervalA state highway patrol car radar unit uses a frequency of 9 x 10^9. what frequency difference will the unit detect from a car receding at a speed of 46.5 m/s from stationary patrol car. |

## Illustrate what is the coefficient of static frictionA spring with a force constant of 130 is attached to the backpack and pulled horizontally, as indicated in the figure .If the backpack begins to slide when the spring ( = 130 ) stretches by 2.40, illustrate what is the coefficient of static fric.. |

## What mass can it support in water before sinkingWhat mass can it support in water before sinking. Two concentric spherical shells with uniformly distributed masses M1 = kg and M2 = kg are situated as shown . Find out the magnitude Find the magnitude of the net gravitational force on a particle .. |

## Calculate the applied voltage in kv should be for capacitorYou are given a parallel plate capacitor that has plates of area 4.00 m2 which are separated by 0.0100 mm of nylon, Calculate what the applied voltage in kV should be for this capacitor |

## What is the total change in the asteroids velocityInfluenced by the gravitational pull of a distant star, the velocity of an asteroid changes from from +21.0 km/s to ?17.8 km/s, What is the total change in the asteroid's velocity |

## What must the potential difference between the platesWhat should be the spring constant of a spring designed to bring a 1400 car to rest from a speed of 95 so that the occupants undergo a maximum acceleration of 5. |

## What is a possible thickness of the slimeA ghost leaves a thin slime of ectoplasm (n=1.8) on a puddle of water (1.33). When looking down with light shining on the puddle, What is a possible thickness of the slime |

## Find the highest speed the stoneA 1.20 brick is sliding next to on a rough horizontal surface at 15.0 .If the brick stops in 4.30, how much mechanical energy is lost? |

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