Q. A tennis player receives a volley with the ball (0.060 kg) travelling horizontally at 51m/s and returns the ball so that it travels horizontally at 42.00 m/s in the opposite direction. What is the work done on tennis ball?

Q. A football player runs the pattern by the three displacement vectors, , and . The magnitudes of these vectors are A = 4.00 m, B = 18.0 m, and C = 16.0 m. Using the component method, find out the (1) magnitude and (2) direction of the resultant vector. Take to be a positive angle.

What is the speed of the command module : A 30 kg box is pushed by a horizontal force of 900. N as it slides up a plane inclined at an angle of 30 degrees with the horizontal. The coefficient of friction between box and plane is 0.20. How far-off will the box travel along the plane in 5.0.. |

What is breakeven level of daily output for firm : Firm manufactures bicycle component upgrade kits. Kits have a short-run average variable cost of $48 and are sold for $66 each. What is breakeven level of daily output for firm. |

Calculate labor productivity : An Appliance Service firm made home calls and repaired ten lawn movers, two refrigerators, and three washers in an 8-hour day with his standard crew of 3 workers. |

What is economic profit and accounting profit : Also during first year, cookie business made monetary outlays of $9,000. You may assume that re is no opportunity cost to Zach's time. What is economic profit and accounting profit. |

What is the work done on tennis ball : A football player runs the pattern by the three displacement vectors, , and . The magnitudes of these vectors are A = 4.00 m, B = 18.0 m, and C = 16.0 m. Using the component method, find out the (1) magnitude and (2) direction of the resultant vec.. |

How much of wage differential is due to discrimination : Using Oaxaca decomposition, calculate how much of wage differential is due to discrimination. What is an alternative Oaxaca decomposition that would lead to a different measure of discrimination. |

Estimate the initial temperature of hot horseshoe : A charge of -4.00 nC and a charge of -6.10 nC are separated by the distance of 60 cm. Find out the position at which a third charge of +7.90 nC can be placed so that net electrostatic force on it is zero. |

What is the electric force acting on alpha particle : Assume the masses described in the preceding problem are 1kg and 100kg in that order. Compare the accelerations while they are interchanged. |

Calculate point price elasticities of demand for customer : Calculate point price elasticities of demand for each customer product at activity levels identified in part A. |

## What is the tension of each of these wiresWhat would be the equilibrium temperature when a 256 g block of copper at 314 °C is placed in a 140 g aluminium calorimeter cup containing 827 g of water at 11.5 °C. |

## Explain what is the tension in each wireA wrench 0.3 meters long lies along the positive y-axis, and grips a bolt at the origin. A force is applied in the direction of langle 0, 1, 2rangle at the end of the wrench. Find out the magnitude of the force in newtons needed to give 100 newton.. |

## What maximum height above the ground will the rocket achievewhat most height above the ground will the rocket achieve. |

## Compute the work one by the friction forceA 340 kg piano slides 3.7 m down a 33° incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. The effective coefficient of kinetic friction is 0.37. |

## What was the speed of bullet at impact with the blockWhat is the terminal speed for an 84.00 skier going down a 38.0 degree snow-covered slope on wooden skis = 0.06? Assume the skier is 1.70 m tall and 0.500 m wide. |

## What is the acceleration of a bodyIf she is served 200 of coffee at 85 in a well-insulated container, how much ice at 0 must she add to obtain a final temperature of 33. |

## What is the speed of each marble immediately after collisionA bullet of mass .004 kg is fired horizontally into a wooden block of mass 1.3 kg resting on a horizontal surface. The coefficient of kinetic friction between block and surface is 0.2. The bullet remains embedded in the block, which is observed to.. |

## What is block speed when it gets back to the bottomThe fastest pitched baseball was clocked at 46 m/s. If the pitcher exerted his force (assumed to be horizontal and constant) over a distance of 1m, and a baseball has a mass of 145 g. |

## What is an angular frequency in of the combinationThey then turn together around the spindle with their centers superposed. What is an angular frequency in of the combination. |

## What is the velocity of the box at 1.20A boy is attempting to swim directly across a river; he is able to swim at a speed of 0.421 m/s relative to the water. The river is 2.48 m wide and the boy ends up at 4.77 m downstream from his starting point. |

## What is the power density half wayThe diffraction pattern produced by the aperture is observed on a screen at a distance of 4 m from the aperture. The power density at the centre of diffraction pattern is measured to be 7 W/m2. |

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