Q1. An airplane flies 200 km due west from city A to city B and then 315 km in the direction of 33.0° north of west from city B to city C.

Q2. A worker is to paint the walls of a square room 9.0 ft high and 12.0 ft along each side. What surface area in square meters should she cover?

Q3. A meteoroid is speeding through the atmosphere, travelling east at 19.3 km/s while descending at 13.5 km/s. What is its speed, in km/s?

## What is the magnitude of the accelerationTwo ocean liners, each with a mass of 40,000 metric tons, are moving on parallel courses, 92 m apart. What is the magnitude of the acceleration of one of the liners toward the other due to their mutual gravitational attraction? Care for the ships as .. |

## Compute the energy lost to friction during that timeA series of small machine components being moved by a conveyor belt passes over a 140-mm-radius idler pulley. At the instant shown, the angular velocity of the idler pulley is 5 rad/s clockwise. If the total acceleration of point B is 2400 mm/s2, wha.. |

## How many visible-light photons are emittedIf the average frequency emitted by a 200,-, rm W light bulb is 5.00 times 10^ {14}, {rm Hz}, and 10.0 percent of the input power is emitted as visible light, about how many visible-light photons are emitted per second. |

## Find out the minimum diameter of the raftIf the surface of the water is calm and the pool is h = 1.52 m deep, find out the minimum diameter of the raft that would prevent the diamond from being seen. |

## Projectile on the moon to reach its greatest heightA toroidal solenoid has a mean radius of 11.0 cm and a cross-sectional area of 5.00 cm2 and is wound uniformly with 100 turns. A second coil with 500 turns is wound uniformly on top of the first. What is the mutual inductance of these coils. |

## How much work is completed by the workerA 110 kg mail bag hangs by a vertical rope 4.0 m long. A postal worker then displaces the bag to a position 2.0 m sideways from its original position, always keeping the rope taut. As the bag is moved to this position, how much work is completed by t.. |

## What is the acceleration of the barWhat friction torque is necessary to reduce its angular speed from 90.0 {rm rpm} to 45.0 {rm rpm} in a time interval of 32.0 {rm s}. |

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