True or Rewrite the in parentheses part to make it true.
11.The speed of a rotating object changes only if (torque) is applied to it.
12.The quantity of angular motion that is used with rotating objects is called (linear) momentum.
13.When a (torque) acts on an object, its angular momentum changes.
16.The torque on the planets orbiting the sun is zero because the gravitational force is directed toward the sun and, therefore, is not (perpendicular) to its velocity.
19.When a machine alters mechanical energy, the product of the force and distance is (zero).
2006-11-28 09:15:57 · 2 answers · asked by marissa c 1 in Science & Mathematics ➔ Physics
no i dont want them to do hw for me its jus that these i couldnt find in my book or notes. i did the other 28 questions by myself okay????
so i thought i could get some help for these 5 that i didnt get.
jeez
2006-11-28 09:48:43 · update #1
11 true; 12 angular; 13 true; 16 parallel; 19 nonzero.
I don't feel good about this either (like the 1st answerer). You really should have this stuff in your head. It's not difficult stuff. Try visualizing these mechanical situations; that may help. Or get tutoring.
2006-11-29 05:52:52 · answer #1 · answered by kirchwey 7 · 0⤊ 0⤋
You are actually wanting someone to do your homework for you aren't you?
2006-11-28 17:19:34 · answer #2 · answered by Anonymous · 0⤊ 0⤋