Q1. An archer shoots an arrow horizontally at a target 12 m away. The arrow is aimed directly at the center of the target, but it hits 56 cm lower. What was the initial speed of the arrow?

Q2. A stretched string is observed to vibrate with frequency 30Hz in its fundamental mode when the supports are 60.0 cm apart. The amplitude at the antinode is 3.0 cm. The string has a mass of 30 g. work out the speed of propagation of the wave and the tension in the string.

How far down the slope does she travel before coming to halt : An 9.00 {rm kg} point mass and a 15{rm kg} point mass are held in place 50{rm cm} apart. A particle of mass m is released from a point between the two masses 19{rm cm} from the 9{rm kg} mass along line connecting the two fixed masses. |

Eight pricing practices of companies : Monroe and Cox provide eight pricing practices of companies that have a negative effect on profitability. Which do you consider to be the easiest to avoid or fix? Why? Explain your position using an example |

Educational attainment and smoking status : Educational attainment and smoking status. |

What is the purpose of calibrating the torsion balance : Compute the acceleration of a 0.55m diameter car tire while the car is travelling at a constant speed of 25m/sec. b. compare this with the acceleration experienced by a jet car tire diameter 1 when setting a land speed record of 310m/sec. |

Work out the speed of propagation of the wave : An archer shoots an arrow horizontally at a target 12 m away. The arrow is aimed directly at the center of the target, but it hits 56 cm lower. What was the initial speed of the arrow. |

Make the appropriate test statistics : Make the appropriate test statistics & the rejection of your test. |

Identify and describe a growth industry : Identify and describe a growth industry, a mature industry, and a declining industry in your community. Which is the nature of competition in each one? What are the implications for each company in terms of opportunities and threats? |

What horizontal force should her wrist exert on her hand : A 52.0 kg ice skater spins about a vertical axis through her body with her arms horizontally outstretched, making 2.0 turns each second. The distance from one hand to the other is 1.50 m. Biometric measurements indicate that each hand characterist.. |

What is the force of gravity between two cars : Expand Lagrangian to second order about equilibrium coordinates, r_0, phi = wt and find the condition for stability against small oscillations. |

## What is it the mass of ballA spring with spring constant 14 hangs from the ceiling. A ball is attached to the spring and allowed to come to rest. It is then pulled down 3.0 and released. The ball makes 17 oscillations in 16 seconds. What is it the mass of ball. |

## How far does each skater travelA train is travelling up a 4.40 incline at a speed of 3.30 when the last car breaks free and begins to coast without friction. How long does it take for the car to come to rest? How far does the car travel. |

## What is the ideal mechanical advantage of a rampAn electric motor rotating a workshop grinding wheel at a rate of 9.90 x 10^1 rev/min is switched off. Assume the wheel has a constant negative angular acceleration of magnitude 1.70 rad/s2. |

## Compute the x-component of this vectorA car travelling at 25.0 m/s runs out of gas while travelling up a 33.0 degree slope. How far up the hill would it coast before starting to roll back down. |

## What is an objects weight at this heightTwo metal plates are held together by two steel rivets, each of diameter 0.24cm and length 1.2cm.How much force has to be applied parallel to the plates to shear off both rivets. |

## What is magnitude of the speed of the boat relative to shoreWhat is magnitude of the speed of the boat relative to a stationary shore observer. A person stands at a point that is 4 m from one of the speakers and 4.4 m from the other. Does the person hear the tone? Explain. |

## What is the shortest fm wavelengthA 77 person stands on the uniform ladder 4.0 long, that weighs 100. The floor is rough; hence, it exerts both a normal force, and a frictional force, on the ladder. The wall, on the other hand, is frictionless; it exerts only the normal force. |

## Coefficient of kinetic friction between box and rampAs part of a safety investigation, two 1700kg cars travelling at 25 m/s are crashed into different barriers. Find the average forces exerted on (a) car that hits a line of water barrels and takes 1.3 seconds to stop, and (b) car that hits a concrete .. |

## What is an angular velocity of the stickA hockey stick is swung with an average angular acceleration of 1.5 rad/s2. What is an angular velocity of the stick when it strikes the ball at the end of 0.8 second swing. |

## Assume that plane continues to fly with the similar velocityAssume that plane continues to fly with the similar velocity |

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