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A potter's wheel moves uniformly from rest to an angular speed of 0.18 rev/s in 34 s.
(a) Find its angular acceleration in radians per second per second.
(b) Would doubling the angular acceleration during the given period have doubled final angular speed?
Evaluate maximum altitude?
a motor starts from rest with an angular acceleration of 12. rad/s ^2 what is the motor angular speed 4.0s later? how many revolutions does it make in this period of time
Suppose you see two main-sequence stars of the same spectral type. Star 1 is dimmer in apparent brightness than Star 2 by a factor of 100. What can you conclude? (Overlook any effects that might be caused by interstellar dust and gas.)
A 68.0 patient is suspended in a raised hospital bed (angle is 50 degrees). The wire is attached to a brace on the patient's neck and pulls parallel to the bed, and the coefficients of kinetic and static friction between the patient and the bed are 0..
A Molecule of DNA is 2.17 um long. The ends of the molecule become strongly ionized: negative on one end, positive on the other. The helical molecule acts like a spring and compresses 0.78% upon becoming charged. Determine the effective spring con..
A hiker moves from base camp a distance of 1250 m due East, then another 845 m in a direction 60.0 degrees North of East. What is the final displacement and direction from base camp
When on the ground, Ian's weight is measured to be 646 N. When Ian is on an elevator, his apparent weight is 743 N. What is the net force on the system
A car with a mass of 800 kg moves up a hill inclined at an angle 15? to the horizontal with a constant acceleration of 2.5 ms?2. Find the force of the engine
a sodium atom with a mass of 3.3910-25 kg and a charge of 1 is hovering 3.00 m above the ground. a second particle with
A spring has a force constant of 16 N/cm. How much work is needed to extend the spring an additional 7.6 mm
Four identical springs support equally tghe weight of a 1300 kg car. the car driver goes over a speed bump, find the oscillation period
An electron is in the ground state of an infinite square well. The energy of the ground state is E1 = 0.72 eV. What is the width of the square well
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