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A uniform metal rod, with a mass of2.9kg and a length of0.9m, is attached to a wall by a hinge at its base. A horizontal wire bolted to the wall0.34m above the base of the rod holds the rod at an angle of22°above the horizontal. The wire is attached to the top of the rod.
(a) Find the tension in the wire.
N
(b) Find the horizontal component of the force exerted on the rod by the hinge.
(c) Find the vertical component.
To stretch a certain spring by 2.90cm from its equilibrium position requires 7.50J of work. What is the maximum force required to stretch it by that distance
An ac generator with a frequency of 34.1 Hz and an rms voltage of 12.0 V is connected to a 49.8-µF capacitor. What is the maximum current in this circuit
A glass window pane is exactly 20 cm by 36 cm at 10oC. By how much has its area increased as it temperature is 33oC, assuming that it can expand freely? Take the coefficient of thermal expansion for the glass to be exactly 9 x 10-6/Co.
Find out the gravitational potential energy
The speed of the ball at the top of the circle is 12.9 m/s. The acceleration of gravity is 9.8 m/s2 . If the ball is released at the bottom of the circle, what is its speed upon release
You have a parallel-plate ideal capacitor with a capacitance of 23mF that you connect to a 4V battery until it is fully charged. What is the diameter of the solenoid
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A diffraction pattern forms when light passes through a single slit. The wavelength of the light is 670 nm. Determine the angle that locates the first dark fringe
What type of information would you tell the prospective employer?. Explain how would you share be to your advantage or disadvantage?
A block of mass 3.0 kg moves along a frictionless track which has a dip 0.7 m below the original level of the track and then a plateau 1.0 m above the original level of the track. What is the velocity at the hight point
A sledge loaded with bricks has a total mass of 18.3 kg and is pulled at constant speed by a rope inclined at 19.7° above the horizontal. What is the mechanical energy lost due to friction
A pair of speakers separated by 0.700 m is driven by the same oscillator at a frequency of 655 Hz. How far must the observer walk before reaching a relative maximum in intensity
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