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A body of mass 500 g is fastened to one end of a steel wire of length 2 m and area of cross-section 2 mm2. If the breaking stress of he wire is 1.25 × 107N/m2, then the maximum angular velocity with which the body can be rotated in a horizontal circle is?
Water is flowing through a circular hole in a large, open tank at a rate of 126 ml / s. The hole is 3.75 meters below the surface of the water in the open tank. The area of the hole is 4 cm2
Estimate the most energetic X-ray you can get from a heavy atom with Z = 86
A potter's wheel moves from rest to an angular speed of 0.20rev/s. Evaluate what is its angular acceleration in radians per second
The electric potential energy stored in the capacitor of a defibrillator is 100 J, and the capacitance is 100 F. What is the potential dissimilarity across the capacitor plates?
In a large centrifuge used for training pilots and astronauts, asmall chamber is fixed at the end of a rigid arm that rotatesin a horizontal circle. A trainee riding in the chamber of acentrifuge rotating with a constant angular speed of 2.5 rad/s..
You have a battery marked 6.00 V.When you draw a current of 0.245 A from it, the potential difference between its terminals is 5.13 V
Describe the displacement of the airplane when the radar was tracking it-RBA=RB-RA. What are the components of RBA.
Identical point charges are fixed to opposite corners of a square. Where doesa third point charge experience the greater force, at one of the empty corners or at the center of the square?
On an essentially frictionless, horizontal ice rink, a skater moving at 4.1 m/s encounters a rough patch that reduces her speed by 49% due to a friction force that is 26% of her weight. find the length of this rough patch
An airplane wing is designed so that the speed of the air acrossthe top of the wing is 310 m/s when the speed of the air below thewing is 325 m/s. What is the lifting force on a wing of area 26 m2
a 0.28- muf capacitor is charged by a 1.2- v battery. after being charged the capacitor is connected to a small
The projection lens in a certain slide projector is a single thin lens. A slide 24.3 mm high is to be projected so that its image fills a screen 1.86 m high. Determine the focal length of the projection lens
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