Both the existence and the location of Neptune were predicted mathematically before the planet actually was detected by telescope
Indicate whether the statement is true or false
TRUE
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Energy Conservation With Nonconservative Forces: On a planet where g = 10.0 m/s2 and air resistance is negligible, a sled is at rest on a rough inclined hill rising at 30° as shown in the figure. The object is allowed to move and it stops on a rough horizontal surface, at a distance of 4.0 m from the bottom of the hill. The coefficient of kinetic friction on the hill is 0.40. What is the coefficient of kinetic friction between the horizontal surface and the sled?
A. 0.10 B. 0.20 C. 0.31 D. 0.40 E. 0.60
Detailed measurements of the disk and central bulge region of our Galaxy suggest our Milky Way is a:
A) normal spiral galaxy. B) barred spiral galaxy. C) very flat elliptical galaxy. D) very dusty irregular galaxy. E) quasar.
As a car drives with its tires rolling freely without any slippage, the type of friction acting between the tires and the road is
A) static friction. B) kinetic friction. C) a combination of static and kinetic friction. D) neither static nor kinetic friction, but some other type of friction. E) It is impossible to tell what type of friction acts in this situation.
The molarity of a solution is the number of moles of solute per liter of ______________
Fill in the blank(s) with correct word