Somewhere between the Earth and the Moon is a point where the gravitational attraction of the Earth is canceled by the gravitational pull of the Moon. The mass of the Moon is 1/81 that of the Earth. How far from the center of the Earth is this point?
a. 8/9 the way to the Moon
b. 9/10 the way to the Moon
c. 3/4 the way to the Moon
d. 80/81 the way to the Moon
b
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Consider a situation where you exert a force F on a crate of mass m, moving it at a speed v a distance d across a floor in a time interval t. The kinetic energy of the crate is __________
Fill in the blank(s) with correct word
A change in a physical quantity w having initial value wi and final value wf is given by which of the following?
a. wi ? wf b. wf ? wi c. (wf + wi)/2 d. none of the above
If Earth rotated about its axis completely upright, what would we fail to experience?
a. holidays b. seasons c. weather d. day and night e. a 365 day year
Resistors in Combination: What is the equivalent resistance between points A and B of the network shown in the figure?
Fill in the blank(s) with the appropriate word(s).