The average velocity of a car that travels 450 km north in 9.0 h is 5.0 x 10 km/h
Answer:
2.5 x 10^{5} J
Explanation:
weight = 5,000 N
coefficient of friction = 0.05
distance = 1000 m
how much work is done by the dogs pulling the sledge
work done = force x coefficient of friction x distance
work done = 5000 x 0.05 x 1000 = 2.5 x 10^{5} J
I think that number five is lithium
It is like that, except most nails are steel or stainless steel, slowing to rusting process to about 5 years.
