Answer: car 1 is going how fast
Explanation: no need to answer without speed I won't know distance.
velocity = distance / time v= d/t firstly you change 3000 m into km distance D = 3000/1000 = 3 km secondly time t = 21 min using velocity formula v = d/t = 3 km/21min =0.142km/min
Answer:
The source of cosmic background radiation filled the entire universe.
Explanation:
D:The source of cosmic background radiation filled the entire universe.
Explanation:
The power P dissipated by a heater is defined as

where V is the voltage and I is the current.
a) The current running through a 130-W heater is

b) The resistance <em>R</em><em> </em>of the heater is

where
is our familiar Ohm's Law.

