The earth has a radius of 6.38 x 106 m and turns on its axis once every 23.9 h. (a) What is the tangential speed (in m/s) of a person living in Ecuador, a country that lies on the equator? (b) At what latitude (i.e., the angle in the figure, in degrees) is the tangential speed 1/6 that of a person living in Ecuador?

What distance h does the mercury rise in the left arm : Mercury is poured into a U-tube as shown in Figure (a). The left arm of the tube has cross-sectional area A1 of 11.0 cm2, and the right arm has a cross-sectional area A2 of 4.60 cm2. |

A cylindrical aluminum rod with an initial length : A cylindrical aluminum rod, with an initial length of 0.8200 m and radius 1200.0 µm, is clamped in place at one end and then stretched by a machine pulling parallel to its length at its other end. Assuming that the rod's density (mass per unit volume.. |

Difference between the angular speeds of wheels on the left : The differential gear of a car axle allows the wheel on the left side of a car to rotate at a different angular speed than the wheel on the right side. A car is driving at a constant speed around a circular track on level ground, completing each l.. |

Calculate the temperature of the well water : The water in a deep underground well is used as the cold reservoir of a Carnot heat pump that maintains the temperature of a house at 299 K. Determine the temperature of the well water |

What latitude is tangential speed-person living in ecuador : The earth has a radius of 6.38 x 106 m and turns on its axis once every 23.9 h. (a) What is the tangential speed (in m/s) of a person living in Ecuador, a country that lies on the equator? (b) At what latitude (i.e., the angle in the figure, in degre.. |

Evaluate the surface area of the filament : The filament of a light bulb has a temperature of 2.85E+3 °C and radiates 40 watts of power. The emissivity of the filament is 0.344. Find the surface area of the filament |

Estimate where is the image formed : An object 3.25 cm high is placed 18.7 cm in front of a convex mirror with radius of curvature of 8.35 cm. Where is the image formed |

What is the x-component of the net torque on the disk : A uniform disk with mass m = 9.09 kg and radius R = 1.37 m lies in the x-y plane and centered at the origin. Three forces act in the +y-direction on the disk: 1) a force 317 N at the edge of the disk on the +x-axis, 2) a force 317 N at the edge of.. |

Evaluate how much work is done by the rope on the sledge : A sledge loaded with bricks has a total mass of 18.1 kg and is pulled at constant speed by a rope inclined at 20.8° above the horizontal. What is the mechanical energy lost due to friction |

## Find the surface charge density on outside surface of shellA -3.41 nC point charge is located at the center of a conducting spherical shell. find the surface charge density on the outside surface of the shell |

## Define magnitude of the electric force that acts on particleA particle has a charge of +1.7 ?C and moves from point A to point B, a distance of 0.12 m. The particle experiences a constant electric force, and its motion is along the line of action of the force. The difference between the particle's electric.. |

## Determine total distance travelledSally travels by car from one city to another. She drives for 30.0 min at 69.0 km/h, 37.0 min at 34 km/h, and 54min at 74.0 km/h and she spends 13.0 min eating lunch and buying gas. |

## What is the angle that the new trajectory makesA particle of mass m1 = 3.74kg is traveling in the positive x-direction with a velocity of 17.5m/s. What is the angle that the new trajectory makes with the x-axis |

## Calculate the angular momentum of the massA 1.5 kg mass is moving in a circle of radius 2 m on a flat frictionless table at the end of a string. What is the angular momentum of the mass |

## Determine the velocity of the center of mass of two ballsTwo balls are approaching each other head-on. Their velocities are +14.6 and -8.88 m/s. Determine the velocity of the center of mass of the two balls |

## Determine the distance from the base of the buildingA projectile is shot horizontally at 65.3 m/s from the roof of a building 24.4 m tall. Determine the distance from the base of the building that the projectile lands |

## How much work does the spring do on the blockA block of mass 4 kg is compressing a spring with K=2500 N/m a distance of 0.3 m. How much work does the spring do on the block |

## Find the thermal efficiency of the engine and work performedgiven heat 1000 j is input to a carnot engine at 300 degrees celsius and waste heat rejected at 10 degrees C. find the thermal efficiency of the engine and the work performed |

## Calculate the rms current flowing through the circuitAn RLC circuit has a resistor of 300 W, a 1.0 µF capacitor, and an inductor of 450 mH connected to an alternate power source with a voltage, calculate the rms current flowing through the circuit |

## Estimate the work done by the bungee cordA simulated bungee jumper falls off a ledge. The plot below shows the force the bungee cord exerts on the jumper as a function of distance from the ledge. estimate the work done by the bungee cord |

## Compute the magnitude and direction of the magnetic forcet a certain location, Earth has a magnetic field of 0.60 10-4 T, pointing 75° below the horizontal in a north-south plane. If the current is directed horizontally toward the east, what are the magnitude and direction of the magnetic force on the wire |

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