Some questions have multiple parts, but you will just see and complete one part at a time. There is a note on those just so that you can recognize that you can refer to your answer to write the next parts.
A car travels 150 km east before turning and traveling 275 km north. What is the
car's displacement? This answer has multiple parts. Write the number of degrees,
just the number

(2) (a) you have a simple circuit that consists of only a battery (δvbat=1.5v) and two resistors with resistance r1=10ω and r2=5ω, connected in series with each other. what is the current running through the battery? (b) you re-arrange your circuit so now r2 is attached in parallel to r1 rather than in series. what is the current running through the battery? (c) you add an additional resistor r3=7ω on the same branch as r2. what is the current running through the battery? (d) what is the power dissipated in r3?