Answer:
Gravity force = mass × gravitational field strength (g). The child’s weight is: 40 × 10 = 400 N. (g on Earth = 10 N/kg). The child's mass is 40 kg.
Explanation:
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The Polio virus usually enters the environment in the feces of someone who is infected
Polio spreads from muscle to the central nervous system by neutral pathways
While giving birth to her infant during labor, the safest and the most effective pushing technique taught to a woman during contractions is grasping knees, head elevated and breathing out.
During labor, it is very important for the mother to keep breathing. If she holds her breath, it will put pressure on the vena cava and lead to a reduction in the blood return. The head is kept elevated and the back is rounded which aids the abdominal muscles to help the uterus to push the baby out. Grasping the knees also helps in pushing and encouraging the movement of the infant outside the body.
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