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A uniform rod of mass 2.75×10-2 kg and length 0.430 m rotates in a horizontal plane about a fixed axis through its center and perpendicular to the rod. Two small rings, each with mass 0.250 kg , are mounted so that they can slide along the rod. They are initially held by catches at positions a distance 4.70×10-2 m on each side from the center of the rod, and the system is rotating at an angular velocity 27.0 rev/min . Without otherwise changing the system, the catches are released, and the rings slide outward along the rod and fly off at the ends.
What is the angular speed of the rod after the rings leave it?
An astronaut with a total mass of 68.5 kg lands on a distant planet. The astronaut weighs himself on the surface of the planet and finds that his weight is 425.0 N. What is the magnitude of the gravitational acceleration on this planet?
A resistor is made out of a long wire having a length . Each end of the wire is attached to a terminal of a battery having a constant voltage Vo. what would be the total current flowing through the two wires
Follow that with some of her work on repressed memories. After completing your readings on the WebLink, the textbook, and the PowerPoint presentation, address the prompts for your assignment.
In the neck of the picture tube of a certain black-and-white TV set, an electron gun contains two charged metallic plates 2.60 centimeter apart. Find the time of flight as the electron passes between the plates
a space traveler weighs 550 n on earth. what will the traveler weigh on another planet whose radius is three times that
In the first-order spectrum, maxima for two different wavelengths are separated on the screen by 3.22 mm. What is the difference between these wavelengths
An object with a density of 771.0 kg/m3 and a mass of 1435.0 kg is thrown into the ocean. Find the volume that sticks out of the water
A child's sled has rails that slide with little friction across the snow. Logan has an old wooden sled with heavy iron rails that has a mass of 8.0kg quite a bit for a 28kg child! Logan runs at 4.0m/s and leaps onto the stationary sled and holds o..
An 77 box of oranges is being pushed across a horizontal floor. As it moves, it is slowing at a constant rate of 0.90 each second. compute the coefficient of kinetic friction between the box and floor
Two radio-frequency point sources S1 and S2, separated by distance d = 1.6 m, are radiating in phase with ? = 0.4 m. How many maxima does it detect
The drawing shows two thermometers, A and B, whose temperatures are measured in °A and °B. The ice and boiling points of water are also indicated.
What mass of water at 25.0° C added to a Styrofoam cup containing two 60.0-g ice cubes from a freezer at -17.0° C will result in a final temperature of 5.0°C for the drink?
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