5 looks like ohm's law R=V/I ...If my arithmetic works, that's R=36 ohms ???
resistors in series is ADD THEM.
800 Newtons
Explanation
The average force is the force exerted by a body moving at a defined rate of speed (velocity) for a defined period of time.
the average force is given by:
and
Step 1
a) Let
now, replace
the negative sign indicates the force is in the opposite way ( the force is exerted by the nail to the hammer), so the force is opposite to the direction of the movement
so, the answer is
800 Newtons
I hope this helps you
17. a
18. c
19. a
20. c
21. c
Answer:
a scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.
Explanation:
i don't have one