Physics, 23.09.2019 17:10 imstef1267
Women often experience back pain when they are pregnant. suppose a woman's mass before pregnancy is 66 kg and her center of mass when standing is located directly above the hips. by the thirty-fourth week of pregnancy, she has gained 8.2 kg (the combined mass of the fetus, the placenta, and the amniotic fluid). the center of mass of this 8.2 kg is 16 cm in front of the hips. if she hasn't changed her posture, how far in front of the hips is her center of mass? women have three wedge-shaped lumbar vertebrae, whereas men have only two. this evolutionary adaptation permits a greater curvature of the lumbar spine to keep a pregnant woman's cm above the hips.
Answers: 1
Physics, 22.06.2019 16:00, ggdvj9gggsc
Suppose a soccer ball is kicked from the ground at an angle 20.0º above the horizontal at 8.00 m/s. the y-velocity is determined to be 2.74 m/s. how long will the ball be in the air? assume the ball lands at the same height at which it was kicked.
Answers: 2
Physics, 22.06.2019 20:00, tasniahussain21
Anika asks eva to roll a basketball and then a bowling ball to her. which requires more force to roll, and why?
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Women often experience back pain when they are pregnant. suppose a woman's mass before pregnancy is...
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