Solar energy sources would have the least ecological imoact
To solve your problem, we can apply Newton's second law of motion.
Fⁿ = ma
<span>Fnet = net force acting on the skier </span>
<span>m = mass of the skier = 53 kg </span>
<span>a = acceleration up the slope </span>
<span>Since velocity is constant then acceleration is zero, hence the above equation becomes </span>
<span>Fnet = 0 </span>
<span>Fnet = F - Wx - f </span>
<span>where </span>
<span>F = force exerted by the tow bar </span>
<span>Wx = component of skier's weight parallel to the incline = 53(9.8)(sin 20) </span>
<span>f = frictional force = 0.160(53)(9.8)(cos 20) </span>
<span>Substituting appropriate values, </span>
<span>F - 53(9.8)(sin 20) - 0.160(53)(9.8)(cos 20) = 0 </span>
<span>and solving for F, </span>
<span>F = 99.55 N </span>
<span>Hope this helps and have a nice day!</span>
Answer:
E. based on Lincoln’s “very remarkable physiognomy”(line 6)
Explanation:
Nathaniel Hawthorne was an<em> American novelist </em>who wrote about his observations about <em>Abraham Lincoln </em>during a<em> White House session. </em>
Hawthorne drew the importance of seeing Lincoln by referring to him as the "man of men." This means that <u>there was something in him which made him stood out from the rest. </u>And so, Hawthorne continues by stating that he wanted to see the<u> "remarkable physiognomy</u>" of the president. The session was an opportunity for Hawthorne.
So, for him,<u> Lincoln was the "man of men" because of his "remarkable physiognomy,"</u> which for Hawthorne was<em> different from the other presidents. </em>He was "homey," which Hawthorne described in the passage when he said that the president had a fair appetite.
So, this explains the answer.