A bolt hole in a brass plate has a diameter of 1.2 cm at 20.°C. What is the diameter of the hole when the plate is heated to 220.°C? (The coefficient of linear thermal expansion for brass is 19 × 10-6 per degree C.)
A) 1.205 cm
B) 1.210 cm
C) 1.195 cm
D) 1.190 cm
E) 1.200 cm
A
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If a 1-kg mass is completely converted into energy, the amount of energy released would be 9 × 10^16 J
a. True b. False Indicate whether the statement is true or false
A 15-?F capacitor is connected to a 50-V battery and becomes fully charged. The battery is removed and a slab of dielectric,
having a dielectric constant of 5.0, is inserted between the plates and completely fills the space between them. (a) What is the capacitance of the capacitor after the slab is inserted? (b) What is the potential difference across the capacitor with the dielectric inserted.
_________hardening is the least expensive process for strengthening metals, because no expensive alloy elements are added, and it is only necessary to deform the metal with standard deformation processes.
Fill in the blank(s) with the appropriate word(s).
Ilona and Olivia observe a virtual image formed by an object placed a distance 
in front of a convex lens of focal length f. They argue about where to place a concave lens of focal length ?f to have a virtual image at the same location relative to the lens that they had with the convex lens. Ilona says that the object should also be placed a distance 
/> in front of the concave lens. Olivia says that this won't work. Which one, if either, is correct, and why? A.
B.
C.
D.
, then d0 was d0 = ?.E.