A) The induced emf in a circuit is proportional to the magnetic flux through the circuit. true false [2.5 points] 0 attempt(s) made (maximum allowed for credit = 1) (b) There can be an induced emf at an instant when the flux through the circuit is zero. true false [2.5 points] 0 attempt(s) made (maximum allowed for credit = 1) (c) Lenz's law is related to the conservation of energy. true false [2.5 points] 0 attempt(s) made (maximum allowed for credit = 1) (d) The inductance of a solenoid is proportional to the rate of change of the current in it. true false

d₁ = displacement of tern from arctic to antarctic = 11000 miles

d₂ = displacement of tern from antarctic to arctic =   - 11000 miles

d = total displacement for the journey

total displacement for the journey is given as

d = d₁ + d₂

d = 11000 + (-11000)

d = 0 miles

t₁ = time of travel from arctic to antarctic = 3 months = 3 x 30 days = 90 days

t₂ = time of travel from antarctic to arctic = 3 months = 3 x 30 days = 90 days

t = total time of travel

total time of travel is given as

t = t₁ + t₂

t = 90 + 90

t = 180 days

average velocity is given as

average velocity = total displacement/ total time

v = d/t

v = 0/180

v = 0 miles/day

statement #3 on andre"s list is false.

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2