Which acid is present in vinegar?
a. HCl
b. H3PO4
c. H2SO4
d. HC2H3O2
d
Physics & Space Science
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Self-Inductance: An ideal solenoid with 3000 turns is 70.0 cm long. If its self-inductance is 25.0 mH, what is its radius? (?0 = 4? × 10-7 T ? m/A)
A. 0.0222 m B. 0.00199 m C. 327 m D. 52.0 m
Physics & Space Science
Compared to a 50-kg person, a 100-kg person at the beach requires
A) twice as much suntan lotion. B) the same amount of suntan lotion. C) less than twice as much suntan lotion.
Physics & Space Science
Buoyant force is greater on a submerged 1-cubic centimeter block of
A) lead. B) aluminum. C) same on each
Physics & Space Science
The angular speed of the minute hand of a clock, in rad/s, is
A.
.B.
.C.
.D.
?.
E.
120?.
Physics & Space Science