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Two steel pipes ABCD and EBF are welded together at B to form the boom shown. The boom is held by a ball-and-socket joint at D and by two cables EG and ICFH; cable ICFH passes around frictionless pulleys at C and F. For the loading shown, determine the tension in each cable and the reaction at D.
question monochromatic light of wavelength 510 nm is incident on a diffraction grating with 5000 linescm. what is the
in lightning storms the potential difference between the earth and the bottom of the thunderclouds can be as high as 50
An 11.3 g bullet leaves the muzzle of a riflewith a speed of 570.5 m/s.What constant force is exerted on the bulletwhile it is traveling down the 0.9 m length ofthe barrel of the rifle?Answer in units of N.
A spherical balloon is made from a material whose mass is 3.00 kg. The thickness of the material is negligible compared to the 1.6-m radius of the balloon. Find the absolute pressure of the helium gas
Two masses m1= 1 kg and m2= 2 kg are connected to each other by a massless rope that passes over a pulley with mass mp= 0.5 kg. What is the period (in s) ofsmall oscillations of this system
Enumerate all the 2S+1LJ terms arising from electronic configuration 1s2 2s2 2p4 (Oxygen). What is the ground state of the system
two concrete spans that form a bridge of total length l0 314 m when the temperature is t0 68of are placed end to end
a mass m1 5.7 kg rests on a frictionless table and connected by a massless string to another mass m2 3.8 kg. a force
With each cycle, a 2430-W engine extracts 2080 J from a thermal reservoir at 90 °C and expels 1510 J into a thermal reservoir at 20 °C. How much time does each cycle take
A string of mass 0.0003kg/m and 0.5m long is vibrating 200 cycles per second. What must be the tension? What hanging mass would generate this tension? I got 12N for tension. Is this correct? And how would you solve for hanging mass.
A 3.18-nF parallel-plate capacitor is charged to an initial potential difference ?Vi = 100 V and is then isolated. How much work is required to withdraw the porcelain sheet
Two equally charged particles each have a mass of .015kg. They are suspended by a light string. determine The magnitude of the repulsive electric force
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