The SI unit of work is
1 answer:
Answer:
<h3>Step-by-step explanation:
The SI unit of work is Joule.
Further more explanation:
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⇒Work done by a force acting on a body is defined as the product of force and displacement of the body in the direction of the force.
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⇒The system of units which is agreed by the international convention of scientists held in France in 1960 is called SI unit.
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⇒One joule is the amount of work done when one Newton force displaces a body through one metre in its own direction.
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Answer:
Step-by-step explanation:
<em>(17).</em> g(x) = x³ + 4x
f(x) = 4x + 1
( f × g )( x ) = ( x³ + 4x )( 4x + 1 ) = <em>4 </em><em> + x³ + 16x² + 4x</em>
<em>(19).</em> f(t) = 4t - 4
g(t) = t - 2
( 4f + 3g )( t ) = 4(4t - 4) + 3(t - 2) = 16t - 16 + 3t - 6 = <em>19t - 22</em>
<em>(21).</em> h(t) = t + 3
g(t) = 4t + 1
h(t - 2) + g(t - 2) = ( t - 2 ) + 3 + 4( t - 2 ) + 1 = t + 4t - 2 + 3 - 8 + 1 = <em>5t - 6</em>