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A horizontal beam is attached to a vertical wall by a frictionless hinge and supported from below at an angle = 45o by a brace that is attached to a pin. The beam has a weight of 347 Newton. Three additional forces keep the beam in equilibrium. The brace applies a force P to the right end of the beam that is directed upward at the angle with respect to the horizontal. The hinge applies a force to the left end of the beam that has a horizontal component H and a vertical component V. Evaluate the magnitude of these three forces.
Light from a sodium lamp (lamda=589 nm) illuminates two narrow slits. The fringe spacing on a screen 150 cm behind the slits is 4.0 mm. What is the spacing (in mm) between the two slits
Two concentric metal spheres are found to have a potential difference of 846.0 V when a charge of 3.586·10-8 C is applied to them. What is the radius of the inner sphere
If you set up a standing wave of 6 segments, how many waves will occur if you triple your frequency? How many wavelengths will there be
A kid fires water horizontally from a squirt gun held 1.6 above the ground. It hits other kid 2.4 away squares in the back, at a point 0.85 above the ground. What was the initial speed of the water.
Suppose the scale of a crown read 7.84 N in air and 6.84 N in water. Gold density = 19.3 g/cm3 , What would the scale reading be in water
Two steel guitar strings have the same length. String A has a diameter of 0.60mm and is under 440.0N of tension. Find the ratio of the wave speeds, VA / VB, in these two strings
A horizontal conductor that is part of a power line carries acurrent of 4800A from south to north. Earth's magnetic field (60.0µT) is directed toward the north and is inclined downward at71° to the horizontal.
A crate of eggs is located in the middle of the flat bed of a pickup truck as the truck negotiates a curve in the flat road. how fast can the truck be moving without the crate sliding
A spaceship is visiting Planet X. While descending to the surface, its rockets produce 25 kN of upward thrust and the spaceship's speed decreases at a rate of 0.15 m/s2. What is the mass of the spaceship
Based on EPA estimated carbon credits value of $70 per metric ton of carbon in 2050, estimate the financial value of the carbon market for the coal-fired electricity system in the US. Briefly put that dollar value in perspective.
Consider the circuit shown in the figure below, where C1 = 2.00 µF, C2 = 9.00 µF, and ?V = 18.0 V. Calculate the final charge on each capacitor
In 1993 a giant 400-kg yo-yo with a radius of 1.5 m was dropped from a crane at height of 57 m, estimate its linear speed at the end of the fall
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