Does an apple tree exert a gravitational force on the earth and if so, how large of a force? Consider and explain this question when the apple is attached to the tree, and when it is falling.

The system is in a container of negligible heat capacity : A tiger leaps horizontally from a 5.90 m high rock with a speed of 4.10 m/s. How far from the base of the rock will she land. |

Iced tea is made by adding ice to : Iced tea is made by adding ice to 2.4 kg of hot tea, initially at 70?C. How many kg of ice, initially at 0?C, are required to bring the mixture to 10?C? (Lf = 3.33×105 J/kg, cw = 4,186 J/kg•? C) |

If the time for an electron to stop is on the order : A stockroom worker pushes a box with a mass 11.2kg on a horizontal surface with a constant speed of 3.50m/s. coefficient of kinetic friction between the box and the surface is 0.20. |

The speed of the stone just before it hits the ground : A car travelling at 23 m/s runs out of gas while travelling up a 20 degree slope. How far up the hill will it coast before starting to roll back down. |

When the apple is attached to the tree : Does an apple tree exert a gravitational force on the earth and if so, how large of a force? Consider and explain this question when the apple is attached to the tree, and when it is falling. |

What is the maximum reaction time of the motorist : A particle has an acceleration of 6.39 for 0.28. At the end of this time the particle's velocity is 9.31 .What was the particle's initial velocity. |

Find the total energy of the circuit : The time-varying current in an LC circuit where C = 11.5?F is given by i(t) = (1.30 A) sin (1230t), where t is in seconds. |

Find out the values of a and k when value of this expression : A plane flies from base camp to Lake A, 280 km away in the direction 20° north of east. After dropping off supplies it flies to Lake B that is 190 km at 30° west of north from Lake A. Graphically find out the distance and direction from Lake B to .. |

Resolve how long the train blocked the crossing : Two stationary positive point charges, charge 1 of magnitude 3.25 nC and charge 2 of magnitude 1.9nC, are separated by the distance of 60 cm. An electron is released from rest at the point midway between the two charges, and it moves along the lin.. |

## At what angle from vertical must she leanA ranger in a national park is driving at 52 km/h when a deer jumps onto the road 86 m ahead of the vehicle. After a reaction time of t s, the ranger applies the brakes to produce an acceleration of -2.9 m/s2. |

## What is the minimum distance from the slits to the screenSuppose that the light is incident at right angles to the film. what is the minimum distance from the slits to the screen when 580 nm light is used. |

## What angle does the light emerge into the airA 1.02 liter flask contains a certain quantity of ideal gas at 315 K. Then an equal number of molecules of the same gas are added to the flask, after which the absolute pressure is 1.60 times its original value. What is a final temperature. |

## Assume that the potential across terminals stays constantThe escape speed from a very small asteroid is only 26 m/s. If you throw a rock away from the asteroid at a speed of 39 m/s, what will be its final speed. |

## Find out the magnitude of each currentWhile a roofer is working on a roof that slants at 39.0 degrees above the horizontal, he accidentally nudges his 93.0 N toolbox, causing it to start sliding downward, starting from rest. |

## What is the magnitude of the horizontal net forceTwo points are located on a rigid wheel that is rotating with an increasing velocity about fixed axis. The axis is perpendicular to the wheel at its center. Point 1 is located on the rim and point 2 is halfway between rim and axis .at any given insta.. |

## What is the percent error for an experimentA 1.20 liter flask contains a certain quantity of ideal gas at 305 K. next an equal number of molecules of the same gas are added to the flask, after which the absolute pressure is 1.30 times its original value. What is the final temperature. |

## A plano-convex lens having a radius of curvature of r1Two charged bodies exert the force of .145N on each other. If they are moved so that they are one fourth as far apart, what force is exerted. |

## The force on the mass exerted by the springA 30 gram mass is hanging from a spring whose unstretched length is 20 cm and whose spring constant is 2.5 N/m. In the list below are described 5 situations. In some of the situations, mass is at rest and remains at rest. In other situations, at the .. |

## Assume the charge on black holeAssume the charge on black hole is 5740 C. At what distance from it is the electric potential equal to 1100 V. |

## The speed of the car in second curve of radiusHow fast can this car round a second curve of radius 320m? |

## What are the magnitude and direction of x and yThe wind blows with a force of 425N north on a sail boat, while the water exerts a force of 325N west on the sailboat. Find out the magnitude and direction of the net external force on the sailboat. |

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