Suppose 0.0450kg of steam (at 100.°C) is added to 0.450kg of water (initially at 20.5°C). The water is inside a copper cup of mass 52.9g. The cup is inside a perfectly insulated calorimetry container that prevents heat exchange with the outside environment. Find the final temperature of the water after equilibrium is reached.

Which of following system represents interrelated activities : Which of the following system represents interrelated activities? |

What is the value of the electric potential : The electric potential at a certain distance from a point charge can be represented by V, What is the value of the electric potential |

State cyclopentanone and the aldehyde used was benzaldehyde : The ketone used was cyclopentanone and the aldehyde used was benzaldehyde. First cyclopentanone was dissolved in 95% ethanol. Then benzaldehyde was added along with NaOH to the mixure. The solution was then mixed creating the aldol condensation pr.. |

What does gunder frank provide as evidence of a sino-centric : What does Gunder Frank provide as evidence of a Sino-centric world between 1500 and 1800 What was meant be the Columbian Exchange and how did this contribute to the Rise of the West |

Find the final temperature of the water : Suppose 0.0450kg of steam (at 100.°C) is added to 0.450kg of water (initially at 20.5°C), Find the final temperature of the water after equilibrium is reached |

Describe the best course of actions for head of operations : Draw a decision tree and describe the best course of actions for the head of operations. |

Ow many ways can the horses come in first second or third : You and your friends have decided to go to The Kentucky Derby. There are 12 horses in the race. How many ways can the horses come in first, second, or third? |

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Compute the initial equilibrium after only supply changes : Suppose that the demand function for apartments in a competitive market is initially D(p)=40-2p and there are 10 apartments. However, after observing how profitable it is to rent apartments, owners construct more houses |

## What is the charge on each electrodeA worker on a scaffolding 65 ft above the ground needs to lift a 390 lb bucket of cement from the ground to a point 30 ft above the ground by pulling on the rope weighting 2 lb/ft . Set up the integral of how much work is required (just give the i.. |

## What is the safest speed to go around the curveWhat is the terminal speed for an 79 skier going down a 36 snow-covered slope on wooden skis = 0.060? Assume that the skier is 1.8 m tall and 0.50 m wide. |

## How long does the ball take to hit the groundA ball is thrown vertically upward with a speed of 15.0 m/s. (a) How high does it rise? m (b) How long does it take to reach its highest point? s (c) How long does the ball take to hit the ground after it reaches its highest point? s (d) What is i.. |

## What would be rockets speed after travellingWhat would be rockets speed after travelling the distance if it weren't tied down to the spring. |

## How far from the dog will the suitcase landA block has an initial speed V(o) > 0 on a linear trajectory on the surface with friction coefficient u and air resistance (F = cv^2). Derive an equation that will represent the velocity (V) as a function of the position of the block (x). So V(x). |

## Inversely proportional to the square of the fieldsInversely proportional to the square of the fields |

## What would be the frequency of vibrationswhat will be the frequency of vibrations. At one instant a bicyclist is 70m due east of a park's flagpole, going due south with a speed of 15m/s. Then, 19s later, the cyclist is 65m due north of the flagpole, going due east with a speed of 14 m/s. |

## How much heat must be supplied to the engineA gasoline engine has a power output of 155kW (about 2.08×105hp ), Its thermal efficiency is 26.0%, How much heat must be supplied to the engine per second |

## Determine the kinetic energy of the diskA horizontal 797N merry-go-round is a solid disk of radius 1.53 m, started from rest by a steady horizontal force of 50.4 N applied tangentially to the edge of disk. Determine the kinetic energy of the disk after 3.06 s. |

## What is the initial velocity of the kickA football kicked off at an angle 20° from the ground reaches a maximum height of 4.7 m. What is the initial velocity of the kick. |

## What is the speed of the two carts at the momentWhat is the speed of the two carts at the moment while their speeds are equal. |

## Evaluate the magnitude of the normal forceUsing Newton's laws, Evaluate the magnitude of the normal force that the floor exerts on the chair. |

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