Answer:
workdone by the person in J is 445.92J
Explanation:
workdone= force x total distance
force= mass x acceleration due to gravity(g)\
mass=4.5kg
g=9.81m/s
force= 4.5 x 9.81 =44.15N
total distance=1.4+8.7=10.1m
workdone=44.15 x 10.1
=445.92J
Answer: Incorrect posture, learn good posture habits or get ergonomical chairs
Explanation:
Incorrect posture is sitting against the appropriate posture of the body, either when writing, sleeping, eating or working. When there is a bad posture to this it affects the body system especially the spinal cord, neck, back. Incorrect posture can lead to kyphosis. One way Sam can solve this pain is by learning proper sitting or working pattern or get ergonomical chairs that assist him to sit well.
Answer:
That would be C, the South was very familiar with the landscape and terrain and they would harass Northern Invaders immensley.
Explanation:
