Explanation:
Momentum before = momentum after
(5 kg) (0 m/s) = (2 kg) (60 m/s) + (3 kg) v
v = -40 m/s
Total kinetic energy is:
KE = ½ (2 kg) (60 m/s)² + ½ (3 kg) (-40 m/s)²
KE = 6000 J
I think number 1 is incorrect I believe that answer is D. Number 6 I believe would be B. The rest seem to be correct.
Answer:
throw them away............
You need the picture. However, since I'm doing PLATO as well, here's the answer:
The third position in which the cyclist is going downhill is the position where the cyclist has the maximum kinetic energy. The other two photos show that the biker has more potential energy.
Thanks, let me know if this helped!
Answer:
C. 3.2 x 10^8 Ω•m
Explanation:
An insulator is a material that resists the flow of electricity.
In the given data the material with the highest resistivity is the best insulator
3.2 x 10^8 Ω•m