Answer:
the force of friction = fk = (uk)n = 402(uk)
the net force acting to accelerate bookcase = ma = (41)(0.12) = 4.9 N
the {assumed horizontal} push force = 65 N
so
65 - fk = 4.9
fk = 65 - 4.9 = 60 N
uk = 60/402 = 0.15 <= ANS
Answer:
A force that resists motion between two objects that are in contact; rubbing together of two objects = <em>Friction</em>
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The tendency of an object to float = <em>Buoyancy</em>
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A push or pull; any quantity that produces or is capable of producing motion = <em>Force</em>
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A universal force that every mass exerts on every other mass; this keeps us down on earth = <em>Gravity</em>
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A free body diagram is a diagram that labels all the forces acting on an object. This allows us to find the net force on an object = <em>Free body diagram</em> (it literally says it in the definition lol)
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Answer:
A. Sulfur _________ group 16 chalcogens
B. Sodium _________ group 1 alkali metals
C. Argon _________ group 18 noble gases
D. Silicon _________ group 14 carbon family
E. Chlorine _________ group 17 halogens
F. Phosphorus_________ group 15 pnicogens
Answer:
learning and memory are very closely related concept . Learning is the acquisition of silk or knowledge, while memory is the expression of what you've acquired.Another difference is the speed with which the two things happen if you acquire the new skill or knowledge slowly and laboriously, that's learning
