Energy Conservation With Nonconservative Forces: A 7.5-kg otter slides down a hill, starting from rest at the top. The sloping surface of the hill is 8.8 m long, and the top is 6.5 m above the base. If the speed of the otter at the bottom of the hill is 9.2 m/s, how much energy was lost to nonconservative forces on the hill?
Fill in the blank(s) with the appropriate word(s).
160 J
Physics & Space Science
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In a(n) _____________reaction, two solid phases ? and ? react to form one solid phase ?.
Fill in the blank(s) with the appropriate word(s).
Physics & Space Science
Briefly explain the possible threat of near Earth objects
What will be an ideal response?
Physics & Space Science
If an object is placed exactly halfway between Earth and the Moon, it would fall toward the
A) Earth. B) Moon. C) neither of these
Physics & Space Science
An object is placed 40 cm in front of a lens of focal length 40 cm. A second lens is placed 17 cm beyond the first. An image forms 48 cm past the second lens. The lateral magnification of this system is
A) -2.8. B) -1.2. C) 1.2. D) 2.8. E) impossible to determine with the information given.
Physics & Space Science