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Author Question: The heating element of a toaster is a 5.4-m length of nichrome wire of diameter 0.48 mm. The ... (Read 157 times)

vinney12

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on: Jul 29, 2018
The heating element of a toaster is a 5.4-m length of nichrome wire of diameter 0.48 mm. The resistivity of nichrome at the operating temperature of the toaster is 1.3  10-6   m.
 
  The toaster is designed to operate at a voltage of 120 V. How much power does it draw in normal operation?
  A) 370 W
  B) 360 W
  C) 380 W
  D) 400 W
  E) 410 W

Question 2

A coating is being applied to reduce the reflectivity of a pane of glass to light with a frequency of 5.75  1014 Hz that is incident normally on the pane.
 
  If the material has an index of refraction of 1.375 and the glass has an index of refraction of 1.537, what is the minimum thickness the coating should have? (c = 3.00  108 m/s)
  A) 60.0 nm B) 80.1 nm C) 65.2 nm D) 145 nm E) 94.9 nm
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mcomstock09

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Reply #1 on: Jul 29, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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vinney12

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Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

kjohnson

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Reply 3 on: Yesterday
Gracias!

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