There is a system of three particles which have masses of M, 2M, and 3M as indicated M------2m------3m [----L----][----L----] find the X coordinate of Xcm of the center of mass. Assume that the particle M is at the origin and the positive x axis is directed to the right Express in terms of L

What are the position and magnification of its image : An object is 28.0 cm from the center of a silvered spherical glass Christmas tree ornament 6.50 cm in diameter. What are the position and magnification of its image? (Use the correct sign conventions.) position _______________cm from the surface imag.. |

Compared to the weight of the elevator-tension in the cable : Consider an elevator that is hanging from a strong cable. The elevator is initially at rest. It then accelerates upwards for 2 seconds, due to the cable pulling. It then then slows down, still moving upwards, until it comes to a stop. Pick out any.. |

Cylinder with height-inside diameter use to hold propane gas : A cylinder with a height of 1.30 and an inside diameter of 0.110 is used to hold propane gas (molar mass 44.1 ) for use in a barbecue. It is initially filled with gas until the gauge pressure reads 1.80×106 and the temperature is 22.0. The temperatur.. |

How much energy was lost in the collision : A 10 g bullet moving 1000 m/s strikes and passes through a 2.0-kg block initially at rest, as shown. The bullet emerges from the block with a speed of 400 m/s. (a) How much energy was lost in the collision? (b) Calculate the average force exerted on .. |

Find the X coordinate of Xcm of the center of mass : There is a system of three particles which have masses of M, 2M, and 3M as indicated M------2m------3m [----L----][----L----] find the X coordinate of Xcm of the center of mass. Assume that the particle M is at the origin and the positive x axis is d.. |

Determine radial velocity of ring as it reaches moving end : A ring is fitted loosely (with no friction) around a long, smooth rod of length L = 0.561 m. The rod is fixed at one end, and the other end is spun in a horizontal circle at a constant angular velocity of ? = 3.57 rad/s. The ring has zero radial velo.. |

What is the work done by the force of gravity : A 255 kg piano slides 4.2 m down a 30° incline and is kept from accelerating by a man who is pushing back on it parallel to the incline (Fig. 6-36). The effective coefficient of kinetic friction is 0.40 Figure 6-36 |

What is the magnitude of the EMF in millivolts : An astronaut who is repairing the outside of her spaceship accidently pushes away a 98.9-cm-long steel rod, which flies off at 10.5 m/s, never to be seen again. As it happens, the rod is oriented perpendicularly to the magnetic field in that region o.. |

Find the work done by the dogs after pulling the sled : A 100 kg sled is slid across a smooth ice field by a group of four dogs tied to the sled pulling with a 350 N force along a rope at an angle of 20 degrees above the horizontal. (a) If the sled travels at a constant speed, find the drag force on the s.. |

## Compute the change in entropy of the waterYou put a kettle on to boil and forget about it so that all the water boils away. what is the change in entropy of the water once it has all turned to steam |

## Find the flow rate of the water in the pipeWater flows through a Venturi meter with a pipe diameter of 10.0 cm and a constriction diameter of 5.6 cm. The U-tube manometer is partially filled with mercury. |

## What distance did the hare coverA fast tortoise runs with a speed of 10.0 cm/s and a hare runs 20.0 times faster. They start a race together but the hare stops to rest for 2.00 minutes. What distance did the hare cover |

## What is the oscillation frequency of the springA 0.200 kg projectile is fired with a velocity of +745m/s at a 2.0kg wooden block that rests on a frictionless table. The velocity of the block, immediately after the projectile passes through it, is +45 m/s. Find out the velocity with which the p.. |

## What is the moment of inertia of the bodyPartciles (mass of each =.2kg) are placed at the 80 cm and 100 cm marks of a meter stick. the mass of the meter stick is .3kg. what is the moment of inertia of the body |

## Find the charge on the positive plate of the capacitorA parallel-plate capacitor with plates of area 600 cm2 is charged to a potential difference V and is then disconnected from the voltage source. What is the charge Q on the positive plate of the capacitor |

## What is its resulting temperatureA block of iron at 43.0°C has mass 2.30 kg. If 3.50×104 J of heat are transferred to the block, what is its resulting temperature |

## Compute the radius of curvature of the dip in the roadif the magnitude of the total acceleration of the car's mass center is the same at B as at A, compute the radius of curvature of the dip in the road at B |

## Estimate the wavelength of the light in waterLight of wavelength 0.538 µm (in air) enters the water in a swimming pool. What is the wavelength of the light in water |

## Find how long will the mortar shell remain in the airA mortar crew is positioned near the top of a steep hill. Enemy forces are charging up the hill and it is necessary for the crew to spring into action. How long will the mortar shell remain in the air |

## What is the direction of the force on the test chargeTwo charged particles of equal magnitude (+Q and +Q) are fixed at opposite corner of a square lying in a plane. What is the direction of the force on the test charge due to the two other charges |

## Question1a light ray of wavelength 589 nm is incident at anquestion1a light ray of wavelength 589 nm is incident at an angle theta on the top surface of a block of polystyrene |

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