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At an amusement park there is a ride in which cylindrically shaped chambers spin around a central axis. People sit in seats facing the axis, their backs against the outer wall. At one instant the outer wall moves at a speed of 3.54 m/s, and an 67.7-kg person feels a 339-N force pressing against his back. What is the radius of a chamber?
A coil with an inductance of 1.8 H and a resistance of 6.7 ? is suddenly connected to a resistanceless battery with an ? = 80.0 V. What is the rate at which thermal energy is appearing
By what factor will the rms speed of gas molecules increase if the temperature is increased from 40 ?C to 150 ?C
The potential difference between the terminals of a battery is 12V when measured directly using a voltmeter. What is this maximum power
A centrifuge in a medical laboratory rotates at an angular speed of 3500 rev/min. When switched off, obtain the constant angular acceleration of the centrifuge
q1. assume acceleration is constant during each time interval but not necessarily the same in both intervals what
Then, a thin conducting wire connects the spheres, redistributing the charge on each sphere. When the wire is removed the spheres still repel but with a force of F2 = 0.100 N. Using this information, find the initial charge on each sphere, q1 and ..
A proton is confined to a nucleus that has a diameter of 5.7 10-15 m. what is the minimum uncertainty in its momentum
A tank with a volume of 0.150 m contains 27.0 degrees celcius helium gas at a pressure of 100 atm. How various balloons can be blown up if each filled balloon so a sphere 30.0 cm in diameter at 27.0 and absolute pressure of 1.20atm .
The pressure in an automobile tire is usually quoted (in the United States) in pounds per square inch (lb/in2), What is the value of the gauge pressure in Pascals
A 68.0-kg person throws a 0.0500-kg snowball forward with a ground speed of 27.0 m/s. What are the velocities of the two people after the snowball is exchanged
A disc spins at 20 [rpm]. Calculate the period of rotation (which is the time interval required for 1 revolution)
q1. an airtight box has a removable lid of area 1.00 10-2 m2 and negligible weight. the box is taken up a mountain
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