Acar travels at 40 km/h for 2 h and 60 km/h for 3 hr. what is its average speed?

Sound is a disturbance that travels through a medium as a

(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?

Which body part transports oxygen removes waste materials in carries nutrients to the body as part of the circulatory system