Question 17 Calculate the force exerted by the biceps to hold up
the forearm and a book whose mass m= 5.8 kg. The
pivot point is at the elbow joint.

Solution: holding up → rotational equilibrium;

Which influences tend to change the state of
rotational motion ?

Answer body lying face up ;

Answer sample (c); // would be best because the percentage of the energy in an incident wave that remains in a reflected wave from this material is the smallest;

To find speed, or mph, use distance/time.

Question 1 answer: make sure you eat healthy foods and excercise atleast once a day.question 2 answer: sometimes bullying . bullying lowers a persons self-esteem sometimes which can make them not care for themselves to much making them feel bad about there body structer. that or they just have a bad body structer and there family/doctor said its unhealthy how they eat.