Answer:
168 J
Explanation:
Work can be calculated using the following formula.
w=f*d
where w is work, f is force, and d is distance.
Anna applied a force of 84 Newtons, and lifted the baby 2.0 meters.
f=84 N
d=2 m
Substitute these variables into the formula.
w=84 N* 2 m
Multiply
w=168 N-m
A N-m is the same as a Joule, or J.
w= 168 Joules
Anna does 168 Joules of work.
I think the answer to the question is b
Answer:
kinetic energy increases a s something is moving, and potential decreases a something is moving, and increases as something goes to its highest point.
Explanation:
potential energy is built up or stored energy, so as soon as something starts moving the energy begins to decrease. Kinetic is the opposite, and builds with movement.
Answer:
The blood transports oxygen from the lungs to the cells of the body, where it is needed for metabolism.
Explanation:
Hope this helps! brainliest welcomed :)
