**Question1**

A 60.0-kg projectile is fired at the angle of 30.0° above the horizontal with an initial speed of 1.28 102 m/s from the top of a cliff 120 m above level ground, where ground is taken to be y = 0.

a) What is an initial total mechanical energy of the projectile?

b) Assume the projectile is traveling 90.7 m/s at its maximum height of y = 291 m. How much work has been done on projectile by air friction?

c) What is speed of the projectile immediately before it hits the ground if air friction does one and a half times as much work on the projectile as it is going down as it did when it was going up?

**Question2**

When determining the volume of the irregularly shaped object, any air bubbles sticking to the surface of the object when it is submerged will cause systematic errors. Would this error give an experimental density that is too high or too low? Elucidate.

Calculate the company''s weighted average cost of capital : Calculate the company's weighted average cost of capital |

Obtain an expression for the velocity : Obtain an expression for the velocity |

Productivity in medical care decreases : One of the economic effects of increasing health care costs in the labour market is that A) Productivity in medical care decreases B) The demand for medical workers is decreasing C) Government is cutting health care coverage for workers |

What do you meant by an rfp : Select a specific category of vertical applications to investigate. Use the Internet and any other sources of information you might have to study some of the different products that are available in that category. |

What is the speed of the projectile : What is the speed of the projectile |

Produce an analysis of possible design solutions : Determine how your specification matches all aspects of the customer needs and design parameters, using a suitable method. Show your evaluation as a report. |

What is the greatest angle of elevation : What is the greatest angle of elevation |

What is the main possible displacement of the shopper : What is the main possible displacement of the shopper |

What is an average speed of this train : What is an average speed of this train |

## What is magnitude of the runner total displacementWhat is magnitude of the runner total displacement |

## What would be apparent speed of the spacecraft imageWhat would be apparent speed of the spacecraft image |

## Calculate the smallest coefficient of static frictionIntroductory Mechanics: Calculate the smallest coefficient of static friction |

## What is the ratio of the amplitude of the damped oscillationWhat is the ratio of the amplitude of the damped oscillation |

## What is size of the gravitational force on the moonWhat is size of the gravitational force on the moon |

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