A direct current arc has a voltage/current ration express as follows V 44+30/I volts. It is connected in series with a resistance or across 100volts supply. If voltage across the arc and resistance are equal find the ohmic value of the resistor​

if the thermos has a vacuum innner, then heat through conv currents and conduction are reduced = vacuum flask

the force required to move the cart is divided by three or 33.33 n.

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