Which of the following must ALWAYS be equal to the buoyant force on an object?
A. the fo...
Physics, 15.02.2020 22:31 ariellewallenst3393
Which of the following must ALWAYS be equal to the buoyant force on an object?
A. the force of gravity
B. the weight of the object
C. the weight of the liquid displaced by the objec
D. the force of friction as the object moves in the water
Answers: 2
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Balloon a has charge q, and identical mass balloon b has charge 10q. you hang them from threads near each other. choose all of the statements with which you agree. check all that apply. a. a and b exert the same magnitude forces on each other. b. the force that a exerts on b is 10 times the force that b exerts on a. c. the angle between the thread supporting a and the vertical is < the angle between the thread supporting b and the vertical. d. the force that a exerts on b is 1/10 the force that b exerts on a.
Answers: 2
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Aball with a mass of 275 g is dropped from rest, hits the floor and rebounds upward. if the ball hits the floor with a speed of 2.40 m/s and rebounds with a speed of 1.70 m/s, determine the following. (a) magnitude of the change in the ball's momentum (let up be in the positive direction.)
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