A person doing a chin-up weighs 725 N, disregarding the weight of the arms. During the first 28.0 cm of the lift, each arm exerts an upward force of 363 N on the torso. If the upward movement starts from rest, what is the person's speed at this point?

What does the term discrediting mean?

Jason is a body builder. despite being more fit, he weighs more than his brother ryan, who is the same height. which is a possible reason? a. jason has more muscle mass than ryan does. b. jason has more body fat than ryan does. c. jason has more muscle mass and body fat than ryan does d. jason has less body fat than ryan does.

If the radius of curvature of the cornea is 0.75 cm when the eye is focusing on an object 36.0 cm from the cornea vertex and the indexes of refraction are as described before, what is the distance from the cornea vertex to the retina? express your answer to two significant