Select ALL the valid statements, i.e., B, AC, BCD. If an equation is dimensionally A) correct, the equation may be correct. B) incorrect, the equation may be correct. C) correct, the equation may be wrong. D) incorrect, the equation must be wrong. E) correct, the equation must be correct.

What pressure will the air exert : Using a sample of 350. mL air is collected at 35 Celsius has a pressure of 550. torr. if it is allowed to expand to 425 mL at 57 Celsius then What pressure will the air exert? |

What is the average power of the engine : A 1300kg sports car accelerates from 0m/s to 33m/s in 12s . What is the average power of the engine? |

Confidence about the percent of all american adults : What can you say with 95% confidence about the percent of all American adults who think that humans developed from earlier species of animals. |

Pascal triangle and probability : Describe a real-life situation where Pascal's Triangle can be used to calculate probability. Is this the best method for solving your calculation? |

Select all the valid statements : Select ALL the valid statements, i.e., B, AC, BCD. If an equation is dimensionally A) correct, the equation may be correct. B) incorrect, the equation may be correct. C) correct, the equation may be wrong. D) incorrect, the equation must be wrong... |

What was the final temperature of the au : A nugget of pure gold of 4.80 grams is absorbed 284 Joules of heat. if the initial temperature was twenty eight degree Celsius then what was the final temperature of the Au? The specific heat of gold = 0.129 J/(g·°C)? |

Find the average density of neptune : The average density of the planet uranus is 1.27 x 10^3 kg/m^3. The ratio of the mass of neptune to that of Uranus is 1.19. The ratio of the radius of Neptune to that of Uranus is 0.969. Find the average density of Neptune. |

Normal distribution and z-value : What is a normal distribution? What is a Z-Value? Can you provide and example of how they relate? |

How many photons does the laser emit : The frequency doubled output of a Nd3+ YAG laser has a wavelength of 532nm. If each pulse of light has a total energy of 0.550J and the repetition rate of the laser is 30Hz, how many photons does the laser emit at 532nm in 3 minutes. |

## The supernova reaches an apparent magnitudeYou have a 56.9-mF capacitor initially charged to a potential difference of 10.1 V. You discharge the capacitor through a 4.77-Ω resistor. What is the time constant? After what multiple of the time constant does the potential difference reach 2.47 V. |

## Find out the speed with which pebble strikes the groundA slingshot fires a pebble from the top of a building at a speed of 20.00 m/s. The building is 28-m tall. Ignoring air resistance, find out the speed with which pebble strikes the ground when the pebble is fired (a) horizontally (b) vertically str.. |

## How long does the object take to hit groundA child's water pistol shoots water through a 1.8 mm-diameter hole. If the pistol is fired horizontally 78 cm above the ground, the squirt hits the ground 1.8 m away. What is the volume flow rate through the squirt? Ignore air resistance. |

## Find the mechanical energy of a block- spring systemFind the mechanical energy of a block- spring system having a spring constant of 1.3 N/cm and an oscillation amplitude of 2.4 cm. |

## What is the velocity v of the smaller fish before lunchWhat is the target's speed just after the bullet emerges.What is the velocity v of the smaller fish before lunch. |

## Explain the events that occur as water moleculesA speed skater moving across frictionless ice at 8.4 m/ s hits a 5.2 m -wide patch of rough ice. She slows steadily, after that continues on at 6.3 m/s. |

## Find the tension in the lower cordThe 4 block in the figure is attached to a vertical rod by means of two strings. When the system rotates about the axis of the rod, the strings are extended and the tension in the upper string is 77. |

## The electron is released from rest at point bPoints A and B have electric potentials of 243 V and 129 V, respectively. When an electron released from rest at point A arrives at point C its kinetic energy is KA. When the electron is released from rest at point B, however, its kinetic energy when.. |

## Which laser emits the higher-frequency lightAn astronaut on the Mars attaches a small brass ball to a 1.00- length of string and makes a simple pendulum. She times 13 complete swings in a time of 35.4 seconds. From this measurement she calculates the acceleration due to gravity on the Mars. |

## What is the increase in temperature of bulletAn 8-kg ball hanging from the ceiling by a light wire 135cm long is struck in an elastic collision by a 2 kg ball moving horizontally at 5.00 m/s just before the collision. Find the tension in the wire just after collision. |

## Find out the magnitude of each currentWhile a roofer is working on a roof that slants at 39.0 degrees above the horizontal, he accidentally nudges his 93.0 N toolbox, causing it to start sliding downward, starting from rest. |

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