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Three particles of mass 8 kg, 5 kg, and 3 kg are connected by rigid rods of negligible mass lying along the y axis and are placed at 5 m, ?3 m, and ?7 m, respectively as in the figure. The system rotates about the x axis with an angular speed of 1.04 rad/s . 1.Find the moment of inertia about the x axis. Consider the masses to be point parti- cles. Answer in units of kg · m2 2.Find the total rotational energy of the system. Answer in units of J 3. Find the linear speed of the top particle of mass 8 kg in the figure. Answer in units of m/s.
A 1.65 kg mass is placed on the end of a spring that has a spring constant of 195 n/m. Determine the change in elastic potential energy of the system
A student from Sidney, Australia compares the distance he obtained from the 1-st spark mark to the 20-th spark mark, What difference in the results was found
One average force F1 has a magnitude that is three times as large as that of another force F2. Both forces produce the similar impulse. The average force F1 acts for a time interval of 1.77ms. for what time interval does the average force F2 act.
A 61 V. battery is connected across a 62600 ohm and a 31700 ohm resistor connected in series. What is the per cent error in the voltmeter reading
Two point charges are on the y-axis. A 5.0 µC charge is located at y = 1.05 cm, and a -2.42 µC charge is located at y = -1.30 cm. Find the total electric potential at the origin
A textbook of mass 2.10kg rests on a frictionless, horizontal surface. A cord attached to the book passes over a pulley whose diameter is 0.190m, What is the tension in the part of the cord attached to the book
On a day of 30 degrees celcius, full sun, how hot would a granite paver get? Will a dark grey one get much hotter than an off white coloured one.
In a typical lightning flash, the potential difference between the cloud and the ground is 10^9 V and the charge transferred is 30 C. Calculate the final speed of the car
A drug prepared for a patient is tagged with which has a half life of 6.05 h and an activity of 1.60 µCi when it was prepared. What is its activity at the time it is injected
An oil drop carries one excess electron and weighs 9.6 x10-15 N. What electric field strength is required to suspend the drop so it is motionless.
An ideal gas is in contact with a heat reservoir to that it remains at a constant temperature of 300.0 K. How much heat flows between the gas and the heat reservoir
Carbon-14 dating is used to date a bone found at an archaeological excavation. If the ratio of C-14 to C-12 atoms is 3.25 x 10- 13, bow old is the bone?
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