Part Five: Problems 35)Express all in SI unit of length
a) 490cm
b) 0.34Mm
c) 100mm
d) 0.87Gm
36)Convert all in to the unit in the brackets. a) 12ton (g)
b) 1000mg (kg)
c) 0,0065kg (ng)
d) 160,000mg (ton)
37) How many months are there in
a) 240 days
b) 16,800 min
c) 1. 75 years
d) 1 decade
e) 0. 05 century
f) 0. 0001 millennium
38) A stick is 12m, 6 dm, 50cm and 12 mm long. Express its length in
a) m
b) dm
c) cm
d) mm

The heater element of a 120 v toaster is a 5.4 m length of nichrome wire, whose diameter is 0.48 mm. the resistivity of nichrome at the operating temperature of the toaster is 1.3 × 10-6 ω·m. the toaster is operated at a voltage of 120 v. (a) what is the power drawn by the toaster? (b) if the cost of electricity is 12 ¢ per kilowatt-hour, and it takes 2 minutes to toast bread, how much does it cost for toasted bread? (c) when the heater element is at room temperature, is the resistivity in the nichrome wire greater than, less than, or equal to it’s resistivity when at operating temperature? explain.