A rock on the ground is considered to have zero potential energy. In the bottom of a well, the rock would be considered to have

a. zero potential energy, as before.
b. negative potential energy.
c. positive potential energy.
d. zero potential energy but would require work to bring it back to ground level.


Ans: d. zero potential energy but would require work to bring it back to ground level.

Physics & Space Science

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Venus's surface temperature is fairly uniform from the equator to the poles because

a. Venus rotates very rapidly, which causes strong zonal winds. b. Venus is covered by a thick cloud layer that absorbs most of the sunlight that falls on it. c. the carbon dioxide in Venus's atmosphere efficiently emits infrared radiation. d. Venus rotates slowly so Coriolis forces do not disrupt Hadley circulation. e. Venus's orbit is nearly perfectly circular.

Physics & Space Science

In the two-slit experiment, the distance between the slits and the screen is 1.1 m and the distance between the slits is 0.040 mm. If the first-order bright fringe is measured to be 3.4 cm from the centerline,

what is the distance between the adjacent bright fringes? A) 1.7 cm B) 5.1 cm C) 7.0 cm D) 6.8 cm E) 3.4 cm

Physics & Space Science

The major moons of ______________ were named after literary characters

a. Mars b. Jupiter c. Saturn d. Uranus e. Neptune

Physics & Space Science

Using dimensional analysis, which one of the following equations is dimensionally correct? ( a ? m/s2, v ? m/s, x ? m , t ? s)

A) x = v/t B) v = 2ax C) t2 = x/a D) x2 = 2av E) x = a t

Physics & Space Science