Sketch the circuit or network between four opaque body surfaces.
What will be an ideal response?
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A rectangular plate (a 5 120 mm, b 5 160 mm) is subjected to compressive stress ?x 5 24.5 MPa and tensile stress ?y 5 15 MPa. The ratio of the normal stress acting perpendicular to the weld to the shear stress acting along the weld is approximately:
(A) 0.27
(B) 0.54
(C) 0.85
(D) 1.22
Our Milky Way is part of ________ which has about ________ member galaxies.
A. the coma cluster; 500 B. the beehive association; 100 C. the Pleiades; 3 D. the local group; 30
What is the largest satellite (moon) in the Solar System?
A. Saturn's moon, Titan B. Neptune's moon, Triton C. Jupiter's moon, Ganymede D. Earth's moon
A seesaw made of a plank of mass 10.0 kg and length 3.00 m is balanced on a fulcrum 1.00 m from one end of the plank. A 20.0-kg mass rests on the end of the plank nearest the fulcrum
What mass must be on the other end if the plank remains balanced? A) 6.67 kg B) 7.50 kg C) 10.0 kg D) -10.0 kg E) 5.00 kg