Q1. A 500.0 g pot of water at room temperature (20.0 degrees C) is placed on a stove. How much heat is required to change this water to steam at 100.0 degrees C?

Q2. A 70 kg man weighs 686 N on the Earth's surface. How far above the surface of the Earth would he have to go to "lose" 12% of his body weight?

Q3. A gymnast of mass 56.0 {rm kg} hangs from a vertical rope attached to the ceiling. You can ignore the weight of the rope and assume that the rope does not stretch. Use the value 9.81 {rm m/s^2} for the acceleration of gravity.

## By what distance has the proton been deflected sidewaysBy what distance has the proton been deflected sideways when it reaches the far edge of the capacitor. Assume the field is uniform inside the capacitor and zero outside the capacitor. |

## How much work does the engine doA 1053-kg car starts from rest at the bottom of a drive way and has a speed of 3.00 m/s at a point where the drive way has risen a vertical height of 0.600 m. How much work does the engine do |

## What is the final temperature of the drinkA 25 g glass tumbler contains 450 mL of water at 24°C. what is the final temperature of the drink |

## Evaluate magnitude of the torque about his shoulderAn athlete at the gym holds a 1.2 kg steel ball in his hand. His arm is 64 cm long and has a mass of 4.0 kg. Evaluate the magnitude of the torque about his shoulder if he holds his arm straight, but 30 degrees below horizontal? |

## Compute the magnitude of the electric fieldA uniform electric field exists in a region between two oppositely charged plates. What is the magnitude of the electric field |

## Determine the recoil speed of the archerA 55.0kg archer, standing on frictionless ice, shoots a 90.0g arrow at a speed of 50m/s. What is the recoil speed of the archer |

## Find the angle between the refracted blue and red raysA car crashes into a wall at 25 m/s and its contents are brought to rest in 0.1s. display that the average force exerted on a 75-kg test dummy by the seat belt is more than 18,000 N. |

## What is the power input of the forceA 4.4 kg box is lifted by a force equal to the weight of the box. The box moves upward at a constant velocity of 3 m/s. What is the power input of the force |

## With what force f2 should the second crewman pullTwo crewmen pull a boat through a lock. One crewman pulls with a force of F1 = 130 N at an angle of = 37° relative to the forward direction of the raft. |

## What was the speed of the rocket piece relative to satelliteJust before the collision and in kilometers per hour, what was the speed of the rocket piece relative to the satellite if both were in circular orbits and the collision was (a) head-on and (b) along perpendicular paths. |

## How fast is the car movingA person with perfect pitch sits on a bus bench listening to the 450{\rm Hz} horn of an approaching car. how fast is the car moving |

## Find the maximum value of the force acting on the barA conducting bar rests on two parallel horizontal rails 50 cm apart forming a square area. The resistance of the bar and the rails is assumed to be constant and equal to 0.05 ??. What is the maximum value of the force acting on the bar during that .. |

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