If cooking is done using an aluminum pan over an electric burner, which of the following will not promote the rate of heat flow from burner to food?
a. increase pan bottom thickness
b. increase pan bottom area
c. increase burner temperature
d. decrease height of pan sides
a
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A solenoid is available that has 100 loops in 2 cm of length with a supermalloy core, and the maximum current for the solenoid wire is 1A. What flux density is possible for this solenoid in air?
What will be an ideal response?
A 1000.0 kg car is moving at If a truck has 18 times the kinetic energy of the car, how fast is the truck moving?
A) 45 km/h B) 63 km/h C) 54 km/h D) 36 km/h
A 120-m long copper wire (resistivity 1.68 × 10-8 ??m) has resistance 6.0 ?. What is the diameter of the wire?
A) 0.065 mm B) 0.65 mm C) 0.65 cm D) 0.65 m E) 6.5 m
Uranium-238 decays to Thorium-234 by emitting which of the following?
a. gamma ray c. beta particle b. positron d. alpha particle