Determine the resistance R when I = 1.5 A
a.
40 ?
b.
8.0 ?
c.
85 ?
d.
28 ?
e.
32 ?
b
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Young's Modulus: A vertical 30-cm steel rod, 1.0 cm in diameter, supports a 300-kg mass. What is the change in length of the rod caused by this mass? Young's modulus for steel is 2.0 × 1011 N/m2.
A. 5.6 × 10-5 m B. 6.5 × 10-5 m C. 5.6 × 10-6 m D. 6.5 × 10-6 m E. 6.5 × 10-4 m
At what angle must a fish underwater look in order to see a fisherman at the shore? (Note: n for water is 1.33.)
A) 41.2° B) 48.8° C) 60.0° D) 36.9° E) 90.0°
A 3 m diameter by 2 m high tank contains sulfuric acid at 100ºC. If the sides are sudden heated to 150ºC, determine the boundary layer thickness of the acid as it moves up the sides of the tank by natural convection. The properties of sulfuric acid are: ?p = 5.0 x 10^-3 K^-1, ? = 1.2 x 10^-6 m^2/s, and Pr = 1.5.
What will be an ideal response?
What do we call a small piece of solar system debris found on Earth?
A) solar system debris B) cometary fragment C) meteor D) meteorite E) meteoroid