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A uniform 1200N beam that is 3.50 m long is suspended horizontally by two vertical wires at its ends. A small but dense 550 N weight is placed on the beam 2.00m from one end. Find the tensions, A and B,in the two wires? If wire B breaks what will be the initial angular acceleration of the system?
1. List real-life communications systems that use the wideband modulations. 2. Explain the reasons in which binary RF digital modulations are more power efficient than M-ary binary digital modulations.
What is angular width of the beam
Four charges of equal magnitude Q = 65 nC are placed on the corners of a rectangle of sides D1 = 25 cm and D2 = 10 cm. calculate the numeric value for the vertical force
A block of mass m = 364 g is dragged with a string across a rough horizontal table. The string tension is T = 2.79 N, What is the power supplied by the force of friction
A 8.85- g bullet from a 9-mm pistol has a velocity of 376.0 m/s. what was the velocity of the bullet as it emerged from the block
q1. a chair of weight 125 n lies atop a horizontal floor the floor is not frictionless. you push on the chair with a
A conductor in the shape of a spherical shell of radii 2,5cm is charged to 20 microcoloumbs. How much work is required to move a 10 microcoloumb charge from the position (0.20) to the point (10,10)
A hydraulic lift consists of two pistons that connect to each other by an incompressible fluid. If one piston has an area of 0.49 m^2 and the other an area of 6.2m^2, how big a mass can be raised by a force of 220N exerted on the smaller piston.
It is claimed that if a lead bullet goes fast enough, it can melt completely when it comes to a halt suddenly, Find the minimum speed of a lead bullet for such an event to happen
a projectile is launched vertically from the surface of the moon with an initial speed of 1100m/s. At what altitude is the projectile's speed one-half its initial value
You are listening to a pure tone of A440 (440. Hz). Without realizing it, you are doing this by noticing the time interval between the firing of the hair cells in your basilar membrane, What is this interval
The left ventricle of the heart accelerates blood from rest to a velocity of +24 cm/s^2. How much time does it take for the blood to reach its final velocity
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