Physics, 15.04.2020 00:42, QueenNerdy889
Imagine that you hold a 6.0-kg lead ball in your hand with your arm bent. The ball is 0.35 m from the elbow joint. The biceps muscle attaches to the forearm 0.050 m from the elbow joint and exerts a force on the forearm that allows it to support the ball. The center of mass of the 12-N forearm is 0.16 m from the elbow joint. Estimate the magnitude of
(a) the force that the biceps muscle exerts on the forearm and
(b) the force that the upper arm exerts on the forearm at the elbow.
Answers: 1
Physics, 22.06.2019 13:30, Travisbennington
Which is not an example of how an object gains elastic potential energy by stretching? a. jumping on a pogo stick b. pulling on a rubber band c. jumping on a trampoline
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Physics, 22.06.2019 18:30, lilypup004
Asled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slidesa distance d1 down the slope and then covers the distance d2 alongthe horizontal terrain before stopping. find the coefficient ofkinetic friction μk between the sled and the ground, assumingthat it is constant throughout the trip. find the coefficient of kinetic frictionμk. express your answer in terms of someor all of the variables d1, d2, and θ.
Answers: 1
Physics, 22.06.2019 22:30, livichavezp2kcd3
Which of these activities increases the amount of carbon in the atmosphere?
Answers: 1
Imagine that you hold a 6.0-kg lead ball in your hand with your arm bent. The ball is 0.35 m from th...
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