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1) A ring 1.90m in diameter is pivoted at one point on its circumference so that it is free to rotate about a horizontal axis. Initially, the line joining the support and center is horizontal.If released from rest, what is its maximum angular velocity?
2) What must its initial angular velocity be if it is to just make a complete revolution?
A gas is allowed to expand isothermally until it reaches its final volume and its pressure is 2.97 atm. Find the heat absorbed by the gas during this process
When a guitar string is sounded along with a 436 Hz tuning fork, a beat frequency of 5Hz is heard. When the same string is sounded along with a 434 Hz tuning fork, beat frequency is 7.00 Hz. What is the frequency of the string.
A 20-kg child swings back and forth on a swing such that her height h in m from the ground as a function of x is described by: h(x) = 0.5 + 0.45x2 for -1.2 m ? x ? 1.2 m, What is the maximum potential energy of the child
A small circular loop of wire of radius 5.0 cm and resistance R = 1.7 10-3 Ω is centered inside a large circular loop of wire of radius 50 cm, Find the average current in the smaller loop during this time interval
The distance between the eyepiece and the objective lens in a certain compound microscope is 12.7 cm. The focal length of the objective is 0.540 cm, determine the overall magnification of the microscope
How much would an 80.0kg person weigh) on mars where an acceleration of gravity is 3.93m/s^2 and (b) on earth's moon where the acceleration of gravity is 1.63m/s^2.
An aluminum-alloy rod has a length of 10.009 cm at 16.200°C and a length of 10.021 cm at the boiling point of water. compute the length of the rod at the freezing point of water
A 1.02 kg mass is suspended from a wire changes the length of the wire by 1.20 mm. find the stress in the wire due to the suspended mass
question 1 a determine the magnitude and direction of the electrostatic force acting on particle a in the figure given
q1. a 1000 kg car travelling at a speed of 20 ms skids to a halt on wet concrete where fk 0.50. how long is the cars
Suppose the highway is icy and the coefficient of friction between the tires and pavement is only one-third what you found in part A. Illustrate what should be the maximum speed of the car so it can round the curve safely?
Consider a ring of radius R with the total charge Q spread uniformly over its perimeter. What is the potential difference between the point at the center of the ring and a point on its axis a distance 2R from the center
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