Within a given system, the internal forces The image shows a multiple-choice question from an educational platform, with the following options listed:- determine the motion of the system.- are measured with a gravimeter.- are only determined by subtracting the external forces from the net force on the system.- all add to zero. (Selected option)- are always balanced by the external forces.The selected answer is "all add to zero." There are no graphs or diagrams present.

Answered: Image /qna-images/answer/d903939f-1e6d-4943-a940-8cba41619440.jpg

Answered: Within a given system, the internal…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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A scale stretches 7 cm for a 7 kg load. How far apart are the 0.5 kg marks on it to the nearest mm?
A 70 kg stunt- woman falls off a bridge and travels 29.0 before colliding with a pile of mattresses. The mattresses are compressed 1.00 m before she is brought to rest. Calculate the magnitude of the average force exerted by the mattresses on the stunt-woman.
In a research facility, a person lies on a horizontal platform which floats on a film of air. When the person's heart beats, it pushes a mass m of blood into the aorta with speed v, and the body and platform move in the opposite direction with speed V. Assume that the blood's speed is 56.5 cm/s. The mass of the person + platform is 54.0 kg. The platform moves 5.95 ✕ 10−5 m in 0.160 s after one heartbeat. Calculate the mass (in g) of blood that leaves the heart. Assume that the mass of blood is negligible compared with the total mass of the person, and the person + platform is initially at rest. (Also assume that the changes in velocity are instantaneous.)
Why should a person pick a compression spring ping pong ball launcher over any other launcher? (Is it that it can travel far distance etc.)
A 1.75 kg wood block is on a horizontal wood surface and a light string attached to the block passes over a frictionless pulley to a 775 g load that hangs freely (Fig. 8-10). If the 1.75 kg block is initially sliding toward the pulley, find (a) the acceleration of the block, and (b) the tension in the string
A 325-g model boat facing east floats on a pond. The wind in its sail provides a force of 1.45 N that points 25 north of cast. The force on its keel is 0.613 N pointing south. The drag force of the water on the boat is 0.750 N toward the west. If the boat starts from rest and heads east, what is its final speed by after it travels for a distance of 4.15 m? Uy = -14.4 m/s
A spring is used to stop a 60 kg package that is sliding on a horizontal surface. The spring has a constant K = 20,000 N/m and is held by cables so that it is initially compressed 0.12 m. The package has a velocity of 2.5 m/s in the position shown, and the maximum additional deflection is 0.04 m. Determine: (a) the coefficient of friction between package and the surface, (b) the velocity of the package as it passes again through the position shown. 2.5 m/s Cable, -60 kg- 600 mm

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