1. Describe a wave pulse and a continuous progressive (traveling) wave

2. Describe and give examples of transverse and longitudinal waves

3. Which of acceleration, age, speed, temperature, and velocity are vector quantities?

Small plastic balls hang from threads of negligible mass : Two small plastic balls hang from threads of negligible mass. Each ball has a mass of 0.19 g and a charge of magnitude q. The balls are attracted to each other, and the threads attached to the balls make an angle of 20.0° with the vertical, as sho.. |

Chris jumps off a bridge with a bungee cord : Chris jumps off a bridge with a bungee cord (a heavy stretchable cord) tied around his ankle as shown in the figure . He falls for 15 before the bungee cord begins to stretch. Chris's mass is 70 kg and we assume the cord obeys Hooke's law, , with k=5.. |

Magnitude of the braking forces : A 1500 kg blue car was travelling at 90 km/h. A 1200 kg red car was traveling behind the blue car at 108 km/h.when the two cars were 55 m apart, the blue car began braking.it took the driver of the red car 0.50 s to start braking her car. If the .. |

Calculate the speed of the liquid as it exits from the hole : This problem is in a beaker. The large container shown in the picture above is filled with a liquid of density 1.1E3 kg/m3. A small hole of area A=2.5E-6 m2 is open in the side of the container a distance h below the liquid surface, which allows a.. |

Describe and give examples of transverse-longitudinal waves : Describe a wave pulse and a continuous progressive (traveling) wave. Describe and give examples of transverse and longitudinal waves. Which of acceleration, age, speed, temperature, and velocity are vector quantities? |

What is the angular speed and the linear speed of the motion : An insect trapped in a circular groove of radius 12 cm moves along the groove steadily and completes 7 revolutions in 100 s. (a) What is the angular speed, and the linear speed of the motion? (b) Is the acceleration vector a constant vector ? What.. |

Nearby stars to exert gravitational force on him : An astronaut accidentally gets separated out of his small spaceship accelerating in inter stellar space at a constant rate of 100 m s-2. What is the acceleration of the astronaut the instant after he is outside the spaceship ? (Assume that there a.. |

Compute how long is the board needed to lift the object : you want to lift a 500-lb object with a lever. you can place a falcrum under a long board a distance of 1.5 ft from the object. how long is the board (total length) needed to lift the object |

Obesity and lifestyle in the united states : Write a paper about Obesity and lifestyle in the United States. |

## How much time elapses before her velocity is reducedAn ice skater is gliding horizontally across the ice with an initial velocity of +7.77 m/s. How much time elapses before her velocity is reduced to +3.00 m/s |

## Use a principal-ray diagramAn electron starts from rest 5.00 cm from the center of a uniformly charged sphere of radius 4.00 cm. If the sphere carries a total charge of 1.00 x10-9 C, how fast would the electron be moving when it reaches the surface of the sphere. |

## Calculate the magnification of the coins final imageA converging lens of focal length 7.99 cm is 19.7 cm to the left of a diverging lens of focal length -6.02 cm, Calculate the magnification of the coin's final image |

## Calculate the image position and heightA 2.0-cm-tall object is 20 cm in front of a converging lens that has a 10 cm focal length. Calculate the image position and height |

## Calculate momenta before collision of the objectsCalculate momenta before collision of the objects with masses m1=10g and m2=20g, moving with speeds v1=2m/s and v2=7m/s |

## What would be the angle of the first diffraction patternWhat would be the angle of the first diffraction pattern for a 650 nm laser submerged in water (n=1.33), if the diffraction grating has 800 lines per mm |

## Find the average power delivered by the elevator motora 753 kg elevator starts from rest. it moves upward for 3.04 seconds with a constant acceleration until it reaches its cruising speed of 2.07 m/s |

## Find the magnitude of the velocity at landingA man slides along a long water slide and then being launched into the air to land in a water pool. Find the magnitude of the velocity at landing |

## What is the new momentum of the puckA hockey puck is sliding along the ice with nearly constant momentum ‹ 4, 0, 4 › kg · m/s, What is the new momentum of the puck |

## Find magnitude of the maximum horizontal forceA block of mass 4.0 kg is put on top of a block of mass M = 5.5 kg. To cause the top block to slip on the bottom one, while the bottom one is held fixed, a horizontal force of at least 16 N must be applied to the top block. The assembly of blocks is .. |

## What is the index of refraction of the wallsTo a fish, the 4.20 mm thick aquarium walls appear to be only 3.80 mm thick. What is the index of refraction of the walls |

## What is the y-component of their vector sumThree vectors have the same magnitude of 18 units. They make angles of ?, 2 times ? and 3 times ? with respect to the x axis, where ? = 14 o. What is the y-component of their vector sum |

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